Digital Array Radar Receiver Channel Equalization Technology Research And Implementation

Digital array radar is a fully digitize phased phase arry radar in which digital beamfoming technique is used in receiving and transmitting .But the frequency dependent interchannel mismatch may severely degrade an array's performance unless some form of compensation is employed . The compensation can achieved by the ADSP-TS101S and FPGA chip in the fast speed now. In adaptive channel equalizing, it is employed that generalized inverse method solves an equalizer's weight coefficient based on least –square. The method of FIR filter based on FPGA is presented. The main content and works of the thesis are present as follows: 1.Discuss the effect of dependent interchannel mismatch between channel on the sidelobe level of a DBF array;Research algorithms of the equalizer; Put forward the hardware comfigration of the equalizer. 2.Complete the circuit design of the equalizer and the program of algorithms based on TigerSHARC ADSP-TS101S. 3.Design serial complex FIR filter based on FPGA. 4.Design the PCI bus Interface unit by using PCI9656 chip...