激光测距的高速采集与处理电路的设计

针对激光测距接收电路提出了将激光回波数字化处理的方法。基于激光测距中激光信号脉冲窄、上升沿陡、实时性要求高的特点,提出了采用ADC FPGA DSP的高速数据采集与实时处理的设计方案,详细介绍了电路的具体设计方法。分别对2MHz正弦波和重复频率5kHz脉宽为80ns的窄脉冲进行了采集实验,结果表明电路满足设计要求。

High speed acquisition and processing circuit for digital laser range finding

This paper introduces a kind of the laser range finding receiver, which could deal with the laser echo by digital signal processing technology. Based on the nature of laser's narrow pulse, steep rising edge and the high real time in laser range finding, the design method puts forward high-speed ADC FPGA DSP for high speed data acquisition and real-time processing and the circuit is discussed in detail. A sine wave with frequency 2 MHz and a narrow pulse with pulse width 80 ns and frequency 5 kHz are acquired respectively and the results show the circuit meets the design requirements.