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https://github.com/bgin/radar_electrooptical_simulation

(REOS) Radar and ElectroOptical Simulation Framework written in Fortran.
https://github.com/bgin/radar_electrooptical_simulation

amdgpu avx avx-512 avx2 c99 control-systems cuda-kernels fortran90 gpu-acceleration high-performance-computing infrared-sensors modeling openmp radar radiative-transfer simd simulation vectorization

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(REOS) Radar and ElectroOptical Simulation Framework written in Fortran.

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# Radar-IR-EOS-Simulation



This project attempts to model and simulate the innerworking of Radar system, Electro-Optical active and passive sources of IR radiation and missile guidance system. The main purpose is to achieve a realisitic system modeling and simulation as much as possible, hence the main sources of knowledge are russian-language (soviet-era) engineering and technical literature reaching design level (candidate of science and experienced system engineers and designers). The second firm foundation which this project stand upon is being wholly optimized at basic level of massive manual vectorization by relying of Fortran array syntax,

better known as a packed array of small structures easily replicating SIMD registers of the CPU. This kind of approach allows mimicking of SIMD (C) intrinsics and leverages compiler autovectorization of the

computational kernels.

The helper code execution path rely on libSIMD which collects various manually vectorized algorithms written in C and may provide a collection of helper routines for some tasks, albeit at the cost of losing the possibility of function body inlining.



Compiler-level autovectorization is of secondary importance and is being inserted mainly to vectorize descriptive statistics routines and profiling metrics calculations. The second code path beside the packed arrays of structures aka PAOS is the GPGPU Cuda implementation counting so far close to 15000 lines of code of computational and helper routines and kernels.

The main programming language of this project is Fortran 90 helped by C language implementation.



I envision five main components:



1) Radar system modeling and simulation.

2) Radio altimeter modeling and simulation.

3) Propagation of laser and IR radiation through the turbulent atmospheric channels.

4) Optical signals processing (background noise extraction).

5) Electro-optical sensor modeling and simulation.

   

The main structure of the projects is a collection of free standing 'modules' programmatically describing various modelled components. It is a software library of framework and may be used as computational backend of larger program of be connected to GUI front-end. Currently only hundreds (circa 400) kernels belonging to AVX512 double and single precision executing path were implemented. All of these kernels compute analytical Radar Cross Section of simple and to lesser extent complex objects



List of references (incomplete):



1) Detection, Estimation, and Modulation Theory Part III: Radar-Sonar Signal Processing and Gaussian Signals in Noise

   Harry L. van Trees

   ISBN-10: 047110793X

   ISBN-13: 978-0471107934

   

 2) Detection Estimation and Modulation Theory, Part I: Detection, Estimation, and Filtering Theory 

    Harry L. van Trees

    ISBN-10: 9780470542965

    ISBN-13: 978-0470542965

    ASIN: 0470542969

    

3) Automatic Control of Aircraft and Missiles 

   John H. Blakelock

   ASIN: B01FJ0JOU2   

    

  4) Principles of High-Resolution Radar (Artech House Radar Library), August W. Rihaczek ISBN-10: 089006900X

     ISBN-13: 978-0890069004



  5) Леонов А.И. - Моделирование в радиолокации (1979, Сов. радио )



  6) Кремер И.Я. - Модулирующие помехи и прием радиосигналов (1972)



  7) Abramowitz M., Stegun I.A. (eds.) - Handbook of mathematical functions (1972, NBS)



  8) Шифрин Я.С. - Вопросы статистической теории антенн



  9) Горяинов В.Т., Журавлев А.Г., Тихонов В.И - Статистическая радиотехника. Примеры и задачи (1980, Советское радио)



  10) George T. Ruck, Donald E. Barrick , William D. Stuart , - Radar Cross Section Handbook  (1970, Kluwer Academic Plenum Publishers)



  11) Тихонов В. И. Статистическая радиотехника. «Сов. радио», 1966



  12) Вайнштейн Л. А., Зубаков В. Д. Выделение сигналов на фоне случайных помех. «Сов. радио», 1960.



  13) Зубковнч С. Г. Статистические характеристики радиосигналов, отраженных от земной поверхности. «Сов. радио», 1968



  14) Шестов Н.С. - Выделение оптических сигналов на фоне случайных помех (1967, Москва Изд. Советское радио)