Students and graduate students of higher education institutions are invited to participate in the conference. educational institutions, research institutes and employees industrial enterprises aerospace complex under the age of 30, as well as schoolchildren.

Directions of the conference:
1. Production technology of rocket and space technology;
2. Design and production aircraft;
3. Propulsion systems and thermal control systems for aircraft and spacecraft;
4. Modeling of physical, mechanical and thermal processes in machines and devices;
5. Models and methods for analyzing the strength, dynamics and reliability of spacecraft structures;
6. Promising materials and technologies;
7. Machine design and robotics;
8. Electronic equipment and technology;
9. Aircraft welding and related technologies;
10. Automation and electronics;
11. History, development and operation of rocket and space technology;
12. Mathematical methods of modeling, data management and analysis;
13. Information Systems and technology;
14. Information and control systems;
15. Methods and means of information protection;
16. Information and economic systems;
17. Operation and reliability of aviation equipment;
18. Technical operation of electrical systems and avionics;
19. Ecology of industry;
20. Industrial Safety;
21. Metrology, standardization, certification;
22. Concepts of modern natural science;
23. Economy and business;
24. Marketing and commercialization of space;
25. Management modern enterprises, industries, complexes;
26. Space exploration: history and modernity;
27. Problems legal regulation in the aerospace industry;
28. Contemporary Issues economic theory and regionalistics;
29. Fundamental and applied problems of the humanities;
30. Modern technologies social and project management;
31. Innovative technologies personnel management;
32. Innovative technologies in financial management;
33. Management in science-intensive industries;
34. Philosophy of space and astronautics: prospects for development in the twenty-first century;
35. Finance and credit;
36. Modern logistics technologies in the development of the aerospace complex;
37. Actual political problems of space and cosmonautics;
38. Innovative and health-saving technologies in modern education
39. Youth, science, creativity (school section).

To be included in the conference program with a report (full-time participation) MUST be submitted to the organizing committee by e-mail before March 26, 2012 [email protected] application for participation in the conference.

For publication in the collection of materials of the conference, it is NECESSARY until April 22, 2012 to send to the organizing committee by mail:
- printed text of the abstract (in 1 copy), signed by the supervisor and an electronic version by e-mail [email protected] in accordance with the requirements of the organizing committee;
- expert opinion on the possibility of publication in open seal(mandatory original) for sections 1 – 22.

2014 at the Siberian State Aerospace University named after Academician
X All-Russian Conference of Creative Youth "Actual Problems of Aviation and Cosmonautics" will be held ( dedicated to the Day astronautics).

Students and graduate students of higher educational institutions, research institutes and employees of industrial enterprises of the aerospace complex under the age of 30, as well as schoolchildren are invited to participate in the conference.

1. Production technology of rocket and space technology;

2. Design and manufacture of aircraft;

3. Propulsion systems and thermal control systems for aircraft and space vehicles;

4. Modeling of physical, mechanical and thermal processes in machines and devices;

5. Models and methods for analyzing the strength, dynamics and reliability of spacecraft structures;

6. Promising materials and technologies;

7. Machine design and robotics;

8. Electronic equipment and technologies;

9. Aircraft welding and related technologies;

10. Automation and electronics;

11. Mathematical methods of modeling, data management and analysis;

12. Information systems and technologies;

13. Information and control systems;

14. Methods and means of information protection;

15. Information and economic systems;

16. Operation and reliability of aviation equipment;

17. Technical operation of electrical systems and avionics;

18. Ecology of industry;

19. Industrial safety;

1. Content. In the theses, it is necessary to formulate problems, reflect the object of study, the level of the research process achieved, the novelty of the results, and the scope of their application.

2. Text formatting. In the upper left corner is the UDC index; below, in the center, initials, surname of the author (authors); further in the center are the initials and surname of the supervisor, the name of the educational institution or organization, the city; through the line the title of the report (IN CAPITAL BOLD LETTERS) and (in italics) a brief abstract of 3-7 lines; further space and the text of the abstracts of the report; a space is followed by a bibliographic list, to which there are links in the text.

3. Volume of text– 1 - 2 full A4 pages (210 mm x 297 mm). Margins: right and left - 2 cm, top and bottom - 2.5 cm.

4. Text. Font - Times New Roman, size 12 pt., paragraph indentation - 0.5 cm; line spacing - single, letter and word spacing - normal, word wrapping is not allowed; simple formulas must be typed in symbols (Symbol font), special complex symbols, as well as multi-line formulas must be typed in the formula editor; tables should be consecutively numbered; illustrations are drawn up according to the text with the tiff extension, not less than 60 x 60 mm and not more than 110 x 170 mm in size, captions are typed in 10 pt font; page numbers should be written in pencil in the middle of the bottom margin.

"CURRENT PROBLEMS OF AVIATION AND ASPECT - 2015. Volume 2 UDC 629.7.05 ANALYSIS OF NAVIGATION EQUIPMENT PROVIDING UNMANNED AERIAL LANDING..."

CURRENT PROBLEMS OF AVIATION AND SPACE - 2015. Volume 2

ANALYSIS OF NAVIGATION EQUIPMENT PROVIDING

LANDING UNMANNED AIRCRAFT

A. V. Puchkov, S. A. Aldaev

Scientific adviser - G. M. Grinberg

Siberian State Aerospace University named after Academician M. F. Reshetnev

Russian Federation, 660037, Krasnoyarsk, prosp. them. gas. "Krasnoyarsk worker", 31 E-mail: [email protected] Considered existing systems UAV automatic landing control, the measurement errors of each type of sensors are calculated and the conditions for their use are formulated.

Key words: automatic landing system, unmanned aerial vehicle, navigation equipment, GPS receiver, laser altimeter.

NAVIGATION EQUIPMENT ANALYSIS PROVIDING PILOTLESS

VEHICLES LANDING

A. V. Puchkov, S. A. Aldaev Scientific supervisor – G. M. Grinberg Reshetnev Siberian State Aerospace University 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation E-mail: [email protected] The automatic landing control systems of the pilotless vehicles are discussed, the measurement errors of each type of sensors are calculated and the conditions of use of each type of sensors are formulated in the article.

Keywords: the automatic landing control systems, pilotless vehicle, navigation equipment, GPSreceiver, laser altimeter.

Small unmanned aerial vehicles (UAVs) are taking an increasingly strong position among the general fleet aircraft and can solve a wide range of tasks at a relatively low cost of operation. Consider a class of small-sized autonomous unmanned aerial vehicles with takeoff weight 10–50 kg. Of particular interest is the issue of automatic landing of these devices. Ability to fly to automatic mode well done and described in literary sources, for example, in . And landing is an extremely difficult and crucial stage of flight for all types of aircraft, and therefore the tasks of automatic landing have not been fully resolved.

Let us analyze the aircraft type of landing, which is most preferable for a UAV of a selected mass. Aircraft landing is carried out in several stages. The first stage: having descended to a height of 25 meters, the aircraft (LA) begins planning, that is, the rectilinear and uniform movement of the aircraft along a downwardly inclined trajectory (along the glide path) to a height of 8-10 meters.

Then the aircraft is aligned along the course in order to get exactly on the runway, and the aircraft is further lowered to a height of 1 meter. The third stage is holding, designed to reduce the speed of the aircraft. The final stage- landing, that is, touching the runway and running with braking along the runway.

There are several main problems in landing: firstly, this is the determination of the height, in order to accurately determine the starting point of the holding, secondly, the determination of the air and ground speed vector so that the direction of the landing approach corresponds to the selected glide path, and, in- thirdly, this is the determination of coordinates and the provision of a given horizontal displacement in the direction perpendicular to the landing trajectory.

Section "INNOVATIVE AND HEALTH-SAVING TECHNOLOGIES IN MODERN EDUCATION"

The main problem is that most of the existing systems are either closed ( commercial developments that are not available to the scientific community), or are too complex and expensive.

Consider the most affordable radio navigation equipment installed on the UAV, such as a GPS receiver, a high-precision GPS receiver in differential mode, a laser altimeter. Let's analyze each system separately.

GPS receivers. The principle of operation is based on the simultaneous measurement of the distance to several broadcasting satellites located in known and corrected orbits. Based on mathematical calculations, the device determines a point in space - coordinates (latitude and longitude of the place on the model of the Earth's surface, as well as the height H relative to the mean sea level of the model). The disadvantage is the relatively large error of this receiver. There are two types of error, horizontal, which affects the accuracy of determining the length of the runway, that is, if the error is large, the runway may not be enough for landing. The second type is the vertical error, which indicates the deviation from the axis of the runway.

Let's use the rule of a triangle to calculate the required runway length margin to ensure the guaranteed completion of an automatic landing (Fig. 1).

Rice. 1 - a triangle for calculating the required length of the runway.

Here x is the glide path angle; H is the accuracy of the device sensor; L is the amount of change in the length of the runway.

H tg x =. (1) L The accuracy of the GPS receiver sensor according to the data given in is: horizontally about 15 meters; vertically about 27 m. If we take the glide path angle equal to 15 °, then the error

L will be equal to:

tg15 Based on the results obtained, we can conclude that an open area is required for landing a UAV equipped with a GPS receiver. For example, a field, since a landing strip is required with a width not less than the double horizontal error value - 30 meters and a length not less than necessary for landing with a margin of 100 meters. A common disadvantage of using any radio navigation system is that certain conditions the signal may not reach the receiver or arrive with significant distortions and delays. Since the operating frequency of GPS lies in the decimeter radio wave range, the level of signal reception from satellites can be seriously impaired under dense foliage of trees or due to very heavy clouds. Normal GPS reception can be affected by interference from many terrestrial radio sources, as well as from magnetic storms. approximate cost GPS - receiver 4-10 thousand rubles.

Consider a high-precision GPS receiver in differential mode. Qualitatively reduce the error in the measurement of coordinates allows the mode of the so-called differential correction.

In this mode, two receivers are used: one is fixed at a point with known coordinates and is called stationary, and the second, as before, is mobile (installed on board the aircraft). The data received by the base receiver is used to correct the information

CURRENT PROBLEMS OF AVIATION AND SPACE - 2015. Volume 2

collected by a mobile device. The accuracy of the sensor for this device, described in, is 0.1m. According to the triangle rule, we find:

0.1 L = = 0.37 m.

0.27 Based on the calculations, it can be concluded that this equipment can be used for landing UAVs on dirt roads, since landing can be carried out on a narrow strip with an insignificant margin of length (0.37 m). Thus, GPS differential measurements can be much more accurate than conventional measurements. A reference station with known coordinates calculates corrections and broadcasts combined messages to correct satellite measurements.

Any number of slave GPS receivers can use these messages to correct almost all errors in their measurements. High-precision GPS receivers such as NovAtel, JAVAD, Gatewing costing from 200 to 800 thousand rubles are effectively used in professional UAVs.

The laser altimeter is designed to measure distances to natural objects. The device is distinguished by low weight and overall dimensions, low energy consumption, high accuracy range measurements, the ability to work in a wide range of temperatures and mechanical influences. Instrument error ±(0.03+0.001 D)m, where D is the distance (height at which leveling begins). In our calculations for the distance we will take 10m.

Substituting them into the formula for calculating the instrument error, we obtain:

±(0.03 + 0.001 10) = ±0.04 m, 0.04 L = =0.15 m.

0.27 Laser altimeters (profilometers) have the highest measurement accuracy and relatively low cost from 15 to 50 thousand rubles.

The advantages of the device are: very large measurement range (more than 1000m), high reliability of measurements; high measurement efficiency for signal reflecting objects at a large angle; high speed work; low power consumption.

Disadvantages: no measurement for transparent objects, significant sensitivity in direct sunlight.

Based on the analysis and calculations carried out, the areas of application of each type of navigation measurement instruments were formulated. For landing on an open wide area, it is rational to use GPS receivers, for landing in conditions of limited dimensions of the runway - a GPS receiver in differential mode. The use of a laser altimeter is justified if the accuracy of the GPS receiver in differential mode is insufficient.

1. Zinoviev A. V., Guziy A. G. // Problems of flight safety. 2008. No. 8. C. 40–49.

2. Krasilshchikov M. N., Sebryakov G. G. Control and guidance of unmanned maneuverable aerial vehicles based on modern information technologies. M. : Fismalit, 2003.

3. Electronic textbook StatSoft [ Electronic resource]. URL: http://www.ra4a.ru/publ/1/8-1-0-360 (date of access: 2.09.2015).

4. Electronic textbook StatSoft [Electronic resource]. URL: http://www.javadgnss.ru/products/oem (date of access: 3.09.2015).

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From 8 to 12 April 2013. at the Siberian State Aerospace University named after Academician M.F. Reshetnev will host the IX All-Russian Conference of Creative Youth "Actual problems of aviation and astronautics" dedicated to Cosmonautics Day.

Students and graduate students of higher educational institutions, research institutes and employees of industrial enterprises of the aerospace complex under the age of 30, as well as schoolchildren are invited to participate in the conference.

Directions of the conference:

1. Production technology of rocket and space technology.
2. Design and production of aircraft.
3. Propulsion systems and thermal control systems for aircraft and spacecraft.
4. Modeling of physical-mechanical and thermal processes in machines and devices.
5. Models and methods for analyzing the strength, dynamics and reliability of spacecraft structures.
6. Perspective materials and technologies.
7. Machine design and robotics.
8. Electronic equipment and technologies.
9. Aircraft welding and related technologies.
10. Automation and electronics.
11. History, development and operation of rocket and space technology.
12. Mathematical methods of modeling, control and data analysis.
13. Information systems and technologies.
14. Information and control systems.
15. Methods and means of information protection.
16. Information and economic systems.
17. Operation and reliability of aviation equipment.
18. Technical operation of electrical systems and avionics.
19. Ecology of industry.
20. Industrial Safety.
21. Metrology, standardization, certification.
22. Concepts of modern natural science.
23. Economy and business.
24. Marketing and commercialization of space.
25. Management of modern enterprises, industries, complexes.
26. Space exploration: history and modernity.
27. Problems of legal regulation in the aerospace industry.
28. Modern problems of economic theory and regional studies.
29. Fundamental and applied problems humanities and modern communications.
30. Modern technologies of social and project management.
31. Innovative technologies of personnel management.
32. Innovative technologies in financial management.
33. Management in high technology industries.
34. Philosophy of Space and Cosmonautics: Prospects for Development in the 21st Century.
35. Finance and credit.
36. Actual problems in logistics and supply chain management.
37. Actual political problems of space and astronautics.
38. Innovative and health-saving technologies in modern education
39. Youth, science, creativity (school section).

To be included in the conference program with a report (full-time participation), you must until March 29, 2013