scicpp::signal::windows::general_cosine¶

Defined in header <scicpp/signal.hpp>

Generic weighted sum of cosine terms window.

The parameter a is a std::array that contains the weighting coefficients. This uses the convention of being centered on the origin, so these will typically all be positive numbers, not alternating sign.

template<typename T, std::size_t M, std::size_t n_weights>
std::array<T, M> general_cosine(const std::array<T, n_weights> &a)¶

Return a std::array of size M. Requires M > 1.

template<typename T, std::size_t n_weights>
std::vector<T> general_cosine(std::size_t M, const std::array<T, n_weights> &a)¶

Return a std::vector of size M. Requires M > 1.

#include <array>
#include <scicpp/core.hpp>
#include <scicpp/signal.hpp>
#include <vector>

int main()
{
    // Define the weights
    constexpr std::array HFT90D{1., 1.942604, 1.340318, 0.440811, 0.043097};

    // Window of 16 points stored in a std::array
    const auto window_array = scicpp::signal::windows::general_cosine<double, 16>(HFT90D);
    scicpp::print(window_array);

    // Window of 8192 points stored in a std::vector
    const auto window_vector = scicpp::signal::windows::general_cosine(8192, HFT90D);
    scicpp::print(window_vector);
}