| Based on DSP, a high-speed signal processing system, which is developed with purpose of the real-time of signal processing is presented in this paper. The function of the system is to acquire signal, communicate with PC, generate the frequency modulation signal, control detector's work mode.In this paper, hardware and software are discussed in detail respectively. The system integrates signal acquisition circuit, frequency modulation circuit, serial communication circuit, DSP circuit and so on. DSP is in charge of the processing of signal and controlling else circuits. The main function of software is to recognize and locate target. The signal is pretreated first and then the characteristic values of target are calculated. At last the target is recognized by template matching.The system is specialized in two aspects: one is real time and the other is higher integration and lower power dissipation. Because the system integrates signal acquisition circuit, frequency modulation circuit, serial communication circuit, DSP circuit and so on. |
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