Based On The Multi-dsp High-speed Real-time Signal Processing System Of Phased Array Radar Design And Development

With phased array radar observing target's improvement of different performances of the aircraft,the deterioration of the working environment of radar and improvement of the radar demand request more and higher for putting forward the equipment of phased array radar video signal processing.The digital signal processing is all the time the developing direction of radar signal processing,its main shortcoming is that the increase processing precision,and the amount of information at the same time bring on the amount processing redouble,method to solve this problem is the real-time high speed digital signal processing system.Presently multi-processors parallel processing is the focus of the field of high-speed real-time processing.This paper's background is the high-speed real-time signal processing of phased array radar.A parallel computing system designed with 4 ADSP-21060 Analog Device Inc's DSP is presented.lt has fully utilized the DSP's characteristic to be supported the parallel computing,and formed a mesh architecture.This paper design and discusses this system in terms of Design For Test(DFT) and Real Time Operation System(RTOS),and have put forward the new solution for the design and development of the high-speed real-time signal processing system..Then,analysed the subject matter faced at the same time.At first ,this paper analyses the characteristic of the signal processing unit of phased array radar.Then we discusse the parallel computating architecture,and present a mesh architecture signal processing system designed with 4 ADSP-21060 DSP,analyse its operation principle.A plan of Design For Test based of Boundary Scan testing is introduced for this signal processing system.In this paper we also analyse debugging and development course of this system in detail,especially the communication development between DSPs.The results of preliminary experiment indicate that this system has fast speed,flexible outside interface,convenient inside data communication and sytem design reconstruct.The course of porting the real time kernel uC/OS-II is presented in the fourth chapter. It is convenient to write the software of this system.And a simple test is carried on.lt was the foundation for the software development of this high-speed real-time signal processing system.The general work of this paper is summarized and the farther researth direcdtion is pointed out in the last chapter.