Binary Phase Coded Pulse Radar Echo Signal Of The Digital Receiver And Pulse Pressure

As the demand of speed and precision of DSP, The Radar Medium Frequency Receiver employ digital signal process algorithm, makes full use of flexible digital chips, such as CPLD, FPGA & special DSP. Contrast to analog system, it take on the advantage of small cubage, low weight, cheapness, simple configuration, modularization. And it takes on the all advantage of digitalization. Digitalization at IF is current trend of communication and Radar development. The traditional analog receiver is now replaced by digital receiver gradually. So it has take on a wide foreground.The basis theory for Medium Frequency receiver and processor includes sample theory, the signal's orthodoxy transform theory, multi-rate digital signal processing theory and signal's modulation and demodulation theory. It's hardware platform is current advanced ADC, special or customized chips with high process speed and good procision. And it employ current efficient digital signal process algorithm and make the time used for design shorter.The purpose of this article is to introduce the realization of Medium Frequency Receive and pulse compression for BPSK pulse compress Radar.The main content of this article includes:The introduction of theory of analog radar medium frequency receiver and its shortcomings;The introduction of theory of digitalizational medium frequency receiver and its shortcomings;The solution for digitalizational medium frequency receiver and pulse compression of BPSK pulse compress Radar;The realization of hardware language of FPGA for the system.The hardware realization for medium frequency receive of BPSK pulse compress Radar and give the test curve and draw a conclusion.