If the coherent bandwidth of channel does not exceed the occupied bandwidth of two chips, with the increase of delay spread of the channel, FD-SS-CLDD exhibits a better performance to make the system resistant to frequency-selective fading.
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- 分析和仿真結果表明,頻域擴頻碼片級差分檢測具有抵抗頻率選擇性衰落的能力,在信道的相干帶寬不小于兩個(gè)碼片對應的頻帶寬度的前提下,隨著(zhù)信道多徑時(shí)延擴展的增加,其誤碼率性能有進(jìn)一步的提高。