Frequency diversity to low-angle detecting using a highly deterministic multipath signal model

In this paper, based on a highly deterministic multipath signal model, we derives 4-rays echo signal formula in multipath. Use MTD to detect the low-angle moving target, but its performance is limited by the multipath propagation factor. Frequency diversity method can resist the multipath fading. Simultaneous detecting in multiple diversity channels can improve the low-angle detecting performance. And this paper puts forward multiple diversity channel accumulation algorithm to advance the detecting performance to a higher position. Simulation shown this technique is effective