在空间预警系统中，由于系统采用红外测量，数据采样率低，很难直接获得关机点的高精度观测值。
In the space early warning system, infrared scan measurement and low sample rate make it difficult to acquire high precision burnout time.
在高数据采样率，特别是大时宽带宽积条件下，时域的数字正交采样和脉冲压缩包含大量的乘加运算。
The computation burden of the quadrature sampling and pulse compression is huge when the data rate is high and the time bandwidth product is not small.
经拉伸处理和窄带滤波的目标信号带宽大大降低，数据采样率也大大降低，因此计算量减小，利于工程实现。
The bandwidth of target signal after stretch processing and narrowband filtering, the data sample ratio and computing burden are reduced greatly and the method is easy for engineering implementation.
应用推荐