Pre-emphasis Filter 预加强滤波器
de-emphasis filter 滤波器
emphasis filter
强调过滤器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
To enhance the performance of the filter in the digital system, the pre-emphasis filter in a digital frequency-modulating exciter which is based on FPGA is designed and realized.
为了提高数字系统中滤波器的性能，对基于FPGA的数字调频激励器中预加重滤波器进行了设计与实现。
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