1. Science
  2. Publications
  3. Scientific Works of Kharkiv National Air Force University
  4. 2(60)'2019
  5. Use of digital differentiation of video pulses in landing radiolocator for substantial decline of passive interferences influence

Use of digital differentiation of video pulses in landing radiolocator for substantial decline of passive interferences influence

M. Rysakov, O. Kulik, I. Kostenko, S. Blashchuk, О. Voronin
Annotations languages:


Description: The necessity of diminishing of passive interferences influence for the peak mode of radiolocator operations becomes more important in difficult meteorological conditions, when reflections from meteorological educations are added to the signals of lo-cal objects. At the same time reflection from local objects, that is represented on the indicators of radiolocator, serve as addi-tional orienteers for the landing zone head about airplane location in the landing area. At the same time on the separate seg-ments of distance the uncompensated reflections from local objects mask the mark of airplane that results in errors in measuring of coordinates of airplanes or makes impossible the realization of such measuring. At the improvement of the radio-locator sig-nal processing amplitude channels is expedient to foresee possibility of reduction of passive interferences influence to the reflec-tion of aircraft signals and retention on the indicator of contours of local objects marks in the landing area. For this purpose it is suggested to realize the method of video pulses differentiation. The method of analog differentiation of video pulses have been used for more than 50 years in radars only with the peak channel of receive. The implementation of digital processing principles of such signals is expedient to realize more effective method of diminishing of influence of passive interferences in the peak mode of operations of radio-locator is a method of digital differentiation. From the analysis of prospects of development of the systems of air traffic guidance providing ensues the necessity of providing of the safe landing of airplanes on the air fields in difficult me-teorological conditions that causes the necessity of improvement of the current landings systems. Therefore the expediency of realization in the landings radio-locators of digital differentiation of video pulses of receiver with the purpose of disguise decline of aircraft signals and bright local objects passive interferences on the final stage of landing is substantiated. Principle of reali-zation of digital differentiation of video pulses of receiver during of digital channel of processing implementation in PRL and reflection of radio-location information is offered. Comparative description of efficiency of the use of analog and digital differen-tiation in relation to decline of influence of passive interferences on probability of exposure and supervision of aircraft signals on the final stage of landing is given.


Keywords: landing radio-locator, selection of moving-targets, passive interferences, local objects, differentiations of video pulses.

References

1. Alimpiev, А.М., Yaroshenko, V.P. and Kovtoniuk, I.B. (2017), “Analіz ta utochnennya faktornogo prostoru dlya pobudovi kvalіmetrichnoї modelі navchal'no-bojovogo lіtaka” [Analysis and refinement of the factor space for the construction of a qualimeter model of a training plane], Systems of Arms and Military Equipment, No. 2(50), pp. 7-9.
2. Babak, V., Kravchenko, V. and Vasylyev, V. (2006), Methods of conflict probability estimation and decision making for air traffic management, Aviation, Vol. 10, No. 1, pp. 3-9.
3.Hordiienko, D.G., Ilchyshyn, Yu.G., Tonkoshkur, V.V. and Yarovyi, S.V. (2017), “Osoblivostі adaptivnoї cifrovoy fіltracіyi radіoіmpulsu bez vnutrіshnoіmpulsnoї modulyacіyi” [Features of adaptive digital filtering of the radio pulse without intrinsic pulse modulation], Systems of Arms and Military Equipment, No. 2(50), pp. 62-66.
4.Wang, B.C. (2008), Digital signal processing techniques and applications in radar image processing, Jonh Wiley &Sons, Inc., United States of America, 300 p.
5.Skolnik, M. (2008), Radar handbook , 3-rd Ed., The McGraw-Hill Companies, 1351 p.
6.Towle, M.D. (1999), Some say cruise missiles supply a concern. Observers say the U.S. military is using the air-and sea-laynched weapons faster than they can be replaced, Fort Worth Star-Telegram, 1999.
7.(2014), Win in a Complex World. The US Army Operating Concept, available at: www.amazon.com/U-S-Army-Operating Concept.
8.Hoffman, F.G. (2007), Conflict in the 21-st century: the rise of hybrid wars, Potomac Institute for Policy Studies,Arlington, Virginia, 72 p.
9.Report to Congress (2000), Kosovo / Operation Allied Force. After Action Report, DoD, January 31, available at:https://www.rand.org/content/dam/rand/pubs/monograph_reports/MR1365/MR1365.ch3.pdf.
10.Karlov, V.D., Pievtsov, G.V., Petrushenko, N.N. and Misailov, V.L. (2011), “Statistichnі harakteristiki radіolokacіjnihsignalіv, vіdbitih vіd mіscevih predmetіv v umovah anomal'noyi refrakcіyi” [Statistical characteristics of radar signals reflected from local objects in conditions of abnormal refraction], Science and Technology of the Air Force of Ukraine, No. 1(5), pp. 69-72. 11.Dedenok, V.P., Karlov, D.V., Pievtsov, G.V. and Rieznikov, Yu.V. (2016), “Іnformacіjnі statistiki і їh zastosuvannya uzadachah sintezu virіshal'nih pravil viyavlennya signalu na fonі zavad v umovah neparametrichnoї aprіornoї neviznachenostі” [Information statistics and their application in problems of synthesis of decisive rules of detection of a signal against the background of interferences in conditions of nonparametric a priori uncertainty], Science and Technology of the Air Force of Ukraine, No. 4(25), pp. 60-66.
12.Sayed, A.H. (2003), Fundamentals of Adaptive Filtering, John Wiley & Sons, Hoboken, 1168 p.13.Rysakov, N.D., Tytov, I.V., Kutsenko, A.P. and Kulyk, A.P. (2011), “Osobennosti postroeniya radiolokacionnogoposadochnogo kompleksa dlya avtomatizirovannogo upravleniya posadkoj samoleta” [Features of the construction of a radar landing complex for the automated control of aircraft landing], Science and Technology of the Air Force of Ukraine, No. 2(6), pp. 115-120. 14.Rysakov, N.D., Kostenko, I.L., Rot, S.M., Каriev, V.G. and Kulyk, O.P. (2015), “Propozicіyi shchodo napryamkіvudoskonalennya posadkovih radіolokatorіv dlya zabezpechennya posadki lіtakіv u skladnih pogodnih umovah” [Proposals for improvement of landing radar for aircraft landing in difficult weather conditions], Problems of Creation, Testing, Application and Operation of Complex Information Systems, No. 12, pp. 157-167.

Reference:
 Rysakov, M.D., Kulyk, O.P., Kostenko, I.L., Blashchuk, S.M. and Voronin, O.I. (2019), “Vykorystannia tsyfrovoho dyferentsiiuvannia videoimpulsiv u posadkovomu radiolokatori dlia suttievoho poslablennia vplyvu pasyvnykh zavad” [Use of digital differentiation of video pulses in landing radiolocator for substantial decline of passive interferences influence], Scientific Works of Kharkiv National Air Force University, Vol. 2(60), pp. 99-105. https://doi.org/10.30748/zhups.2019.60.13.