摘要
为降低脉冲多普勒雷达测量高速目标时数据处理的难度,在分析目标多普勒频率和回波带宽的基础上,提出对经快速傅里叶变换(FFT)后的采集数据进行压缩处理的方法,并阐述了其基本原理。研究表明,利用汉明窗可有效获取多普勒频率,并在频域上进行数据压缩,既可保留目标的全部信息,又能获得较高的压缩比。
To reduce the difficulty in the data processing when the target with high velocity was measured by pulsed doppler radar, the compression processing after the sampled data had been transferred by fast Fourier transform on the basis of analyzing doppler shift of target and echo bandwidth. The general principle was described, The approach showed that the Doppler frequency could be acquired by Hamming window. The data was compressed in frequency domain would not only keep all the information for the target but also gain high compression ratio.
出处
《上海航天》
北大核心
2005年第4期19-22,共4页
Aerospace Shanghai
