大量程大变率高精度雷达水位计关键技术研究

摘要

The resolution,precision and stability of the radar water-level gauge under the conditions of wide range and large variability were analyzed in this paper.Based on the frequency modulated continuous wave (FMCW) principle,fast Fourier transform and Chip-Z algorithm,fast automatic gain control method,dedicated DSP digital signal processing platform and FPGA large-scale programmable logic chip optimization design were used to meet the wide range and high-precision water level measurement requirements,which has broad application prospects.%分析了雷达水位计在大量程大变率条件下的分辨力、精度和稳定性等问题,基于调频连续波,采用快速傅里叶变换和Chip-Z算法、快速自动增益控制方法、专用DSP数字信号处理平台和FPGA大规模可编程逻辑芯片等优化设计,满足了大量程、大变率、高精度水位测量对精度的要求,具有广阔的应用前景.