Design Of AD Sampling Board In Correlative Interferometer Direction Finder

As radio communication processes, Wireless direction finding has been developing rapidly. In the modern electronic warfare, wireless direction finding was the most important and efficient method in Electronic Support Measure. In view of prevalent using of spread spectrum technology in modern tactical transceiver, direction finder based on spread spectrum technology was described in the paper.First, the theory and the characteristics of the spread spectrum were recounted. Second, a comparison with amplitude comparison direction-finding system, Doppler direction-finding system, spatial spectrum estimate direction-finding system, interferometer direction finding system was dwelled on. Correlative interferometer direction finding system and poly-phrase filter was analyzed theoretically in detail. The system configuration and the signal process algorithm were suggested.Finally the five-channel AD sampling board in correlative interferometer direction finder was realized...