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espressif / esp-dsp

DSP library for ESP-IDF
Apache License 2.0
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建议增加半带滤波器 (DSP-82) #30

Closed TimeWalker411 closed 1 year ago

TimeWalker411 commented 3 years ago

可以使用半带滤波器加抽取减小运算量

dmitry1945 commented 3 years ago

Hi @TimeWalker411

Yes, it's done in FIR filter (dsps_fird_f32) with decimation. You can use decimation 2, 3, 4 ... etc.. Or you mean something else?

Regards, Dmitry