useful bandwidth造句

例句与造句

1. Unlike pilots which are used for estimation of channel and must waste some useful bandwidth , the ppss , whose power can be boosted 3db or 6db to suppress efficiently the additive noise , is useful data transmitted , thus efficiency of the ofdm has been increased
   与用于做信道估计的导频符号不同， ppss传输的是有用的数据，因此提高了系统的带宽利用率， ppss的平均功率增加3db或6db可有效抑制信道的加性高斯噪声。
2. It's difficult to find useful bandwidth in a sentence. 用useful bandwidth造句挺难的