frequency_response.hpp

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// toolboxes/signal/include/nk/signal/filter_analysis/frequency_response.hpp
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
#include <tuple>
 
namespace nk::signal {

 

std::tuple<Value, Value>
freqz(const Value &                b,
      const Value &                a,
      size_t                       npts = 512,
      std::pmr::memory_resource *  mr   = nullptr,
      bool                         whole = false,
      double                       fs    = 0.0);

std::tuple<Value, Value>
freqz(const Value &                b,
      const Value &                a,
      const Value &                wvec,
      std::pmr::memory_resource *  mr   = nullptr);

std::tuple<Value, Value>
phasez(const Value &                b,
       const Value &                a,
       size_t                       npts = 512,
       std::pmr::memory_resource *  mr   = nullptr,
       double                       fs   = 0.0);

std::tuple<Value, Value>
grpdelay(const Value &                b,
         const Value &                a,
         size_t                       npts = 512,
         std::pmr::memory_resource *  mr   = nullptr,
         double                       fs   = 0.0);
 

} // namespace nk::signal