The computation burden of the quadrature sampling and pulse compression is huge when the data rate is high and the timebandwidthproduct is not small.
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。
2
Besides designing and selecting waveforms, in order to acquire high timebandwidthproduct, it is the major practical method to increase the bandwidth of the signal with limited time duration.
除了对波形本身的设计和选择，设法增大有限时宽信号的带宽，是实际获得大时带积脉压信号的主要手段。
3
The relation between the interception factor and signal parameters is deduced. Large timebandwidth (TB) product is a necessary condition for an LPI signal.