The Stel-2000a-based Spread Spectrum Radio Research And Design

This paper focus on the key techniques of digital spread and despread spectrum communication system , which includes high speed ADC of digital IF, digital down converter, digital PN code matched filter and carrier recovery of digital demodulation. Also, an IF spread spectrum communication system is designed which based on 1C spread spectrum transceiver STEL-2000A and other circuits, such as QPSK modulator , high speed ADC and TMS320F206.