FPGA and DSP Ep. 4: Polyphase Filters скачать в хорошем качестве

FPGA and DSP Ep. 4: Polyphase Filters

#fpga #vhdl #xilinx #digitalsignalprocessing Designing a multiplier-efficient Polyphase filter in VHDL Timestamps 00:00 Introduction 00:33 Sampling Rate Conversion overview 00:53 Sampling Rate Conversion example 01:58 Sampling Rate Conversion application 02:24 Polyphase Interpolation 05:08 Polyphase Decimation 07:15 Interpolator Optimization 08:28 Decimator Optimization 09:27 The code 11:06 Testing 13:31 Conclusion Sources and References [1] VHDLwhiz https://vhdlwhiz.com/ [2] This is just a theoretical example. In reality, you would like the sampling frequency to exceed the maximal input frequency by more than 2 times. Hence, it would be more realistic to reduce the bandwidth 3 times at most. Nevertheless, it all depends on the system's requirements and capabilities. [3] JUCE Manual https://docs.juce.com/master/classdsp... [4] How delta-sigma ADCs work, Part 2, Texas Instrument ow delta-sigma ADCt 2 https://www.ti.com/lit/an/slyt438/sly... [5] The Summing operation at the output is not correctly depicted – in the actual design it has to be configured, so it accumulates the values within the frame, i.e. there is an enable condition that interrupts the summing operation when a new frame begins. [6]Virtex-5 FPGA XtremeDSP Design Considerations User Guide https://docs.xilinx.com/v/u/en-US/ug193 The datasheet suggests there is a code for the described polyphase filters; however, the link presented in the document does not work. [7] Chapter 10: Sample Rate Conversion, Understanding Digital Signal Processing [8] Git https://github.com/DHMarinov/Polyphas...