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宽带目标回波信号检测常用与雷达目标识别领域中,设计基于80C51单片机的调谐电路宽频带回波信号FIR滤波系统,分析信号频谱进行幅值补偿、标定目标强,提高对目标的定位识别能力。提出一种基于80C51单片机的调谐电路宽频带回波信号FIR滤波设计方法,设计基于80C51单片机的调谐电路回波信号采集结构,进行阻抗匹配及功率放大器电路设计,采用基于串联谐振匹配的FIR滤波设计,改进FIR滤波算法,实现基于80C51单片机的调谐电路宽频带回波信号FIR滤波。实验结果表明,该FIR滤波设计具有较好的宽频带回波信号滤波性能,通过FIR滤波电路设计,提高了对信号的检测概率和目标识别能力,检测精度提高14%,展示了较好宽频带回波信号检测和处理性能。
In the field of broadband target echo signal detection and radar target recognition, a wideband echo signal FIR filter system based on 80C51 singlechip tuning circuit is designed. The signal spectrum is analyzed for amplitude compensation, calibration target is strong and the positioning recognition capability of the target is improved. A design method based on 80C51 singlechip tuned circuit broadband echo signal FIR filter design, design based on 80C51 singlechip tuned circuit echo signal acquisition structure, impedance matching and power amplifier circuit design, based on the series resonant matching FIR filter design , Improve the FIR filtering algorithm to achieve wideband echo signal FIR filter based on 80C51 microcontroller tuning circuit. Experimental results show that the FIR filter design has better performance of wideband echo signal filtering. By FIR filter design, the signal detection probability and target recognition ability are improved, the detection accuracy is improved by 14%, and the better wide band Echo signal detection and processing performance.