Trait basic_dsp_vector::FrequencyDomainOperations
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[src]
pub trait FrequencyDomainOperations<S, T> where S: ToSliceMut<T>, T: RealNumber { fn mirror<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>; fn fft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>; fn ifft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>; }
Defines all operations which are valid on DataVecs
containing frequency domain data.
Failures
All operations in this trait set self.len()
to 0
if the vector isn't in frequency domain and complex number space.
Required Methods
fn mirror<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>
This function mirrors the spectrum vector to transform a symmetric spectrum into a full spectrum with the DC element at index 0 (no FFT shift/swap halves).
The argument indicates whether the resulting real vector should have 2*N
or 2*N-1
points.
Example
use basic_dsp_vector::*; let mut vector = vec!(1.0, 2.0, 3.0, 4.0, 5.0, 6.0).to_complex_freq_vec(); let mut buffer = SingleBuffer::new(); vector.mirror(&mut buffer); assert_eq!([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 5.0, -6.0, 3.0, -4.0], &vector[..]);
fn fft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>
Swaps vector halves after a Fourier Transformation.
fn ifft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>
Swaps vector halves before an Inverse Fourier Transformation.
Implementors
impl<S, T, N, D> FrequencyDomainOperations<S, T> for DspVec<S, T, N, D> where DspVec<S, T, N, D>: ToTimeResult, DspVec<S, T, N, D>::TimeResult: RededicateForceOps<DspVec<S, T, N, D>>, S: ToSliceMut<T> + Owner, T: RealNumber, N: ComplexNumberSpace, D: FrequencyDomain