OFDM可以使接收机中的基带处理单元大大简化，并且可以提高数据速率。
OFDM can simplify the base-band processing unit of the receiver greatly and can increase the data rate.
目前的宽带数字接收机又存在着高速adc与后端低速率DSP处理能力之间矛盾的“瓶颈”问题。
At present, the wideband digital receiver has the "bottleneck" question that the high speed ADC can not match low speed DSP processing ability.
如果速率变换是允许的，自适应接收机在多速率CD MA系统中的应用就会变得非常麻烦。
If the rate change is allowed, the application of the adaptive receiver to the multirate CDMA system is somewhat cumbersome.
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