selective distortion的例句大全

However, poor conditions of transmission, serious noise background, time and frequency selective fading, the limited bandwidth of channel result in serious distortion of UWA communication signals.

但由于水声通信传输条件恶劣，存在严重的噪声背景，并且水下声信道的带宽十分有限，再加上复杂的多径传播和时间、频率选择性衰落，导致水声通信信号严重畸变。

Moreover, it can transmit data at a high speed in the frequency selective fading channel. However, one problem of OFDM lies in the big Peak-to-Average Power Ratio ( PAPR), which leads to intermodulation distortion of OFDM signals and degradation of systematic functions.

然而，OFDM系统中最主要的问题之一在于OFDM信号的峰值平均功率比（PAPR）很大，容易导致OFDM信号的交调失真和系统性能的下降，这就限制了OFDM技术的广泛应用。