Navigation radar signal acquisition and measurement system

In the course of navigation, radar is a very important navigation aids. However, different types of radar always have different signal definition. In this paper, a kind of method on radar signal acquisition and measurement based on embedded system is proposed. The system, which could automatically detect some common radar signal parameter, is consist of CPLD, ARM micro processor, ADC and amplifier. Radar echo video, heading position, bearing and trigger pulse signal are sent to the control unit through filter and acquisition circuit. After being processed by CPU, the frequency, amplitude and range of radar signal will be accurately shown to the user.