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gr-digitalhf/lib/nlms.hpp

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2019-09-11 14:30:36 +00:00
// -*- c++ -*-
#ifndef _LIB_NLMS_HPP_
#define _LIB_NLMS_HPP_
#include <vector>
#include "filter_update.hpp"
#include "volk_allocator.hpp"
namespace gr {
namespace digitalhf {
class nlms : public filter_update {
public:
nlms(float mu);
virtual ~nlms();
static sptr make(float mu);
virtual void reset();
virtual gr_complex const* update(gr_complex const*, gr_complex const*);
virtual void set_parameters(std::map<std::string, float>const &);
protected:
void resize(size_t);
private:
typedef std::vector<gr_complex, volk_allocator<gr_complex> > complex_vec_type;
typedef std::vector<float, volk_allocator<float> > real_vec_type;
float _mu;
complex_vec_type _gain;
complex_vec_type _tmp;
real_vec_type _t1;
} ;
} // namespace digitalhf
} // namespace gr
#endif // _LIB_NLMS_HPP_