Trait basic_dsp_vector::FrequencyDomainOperations
[−]
[src]
pub trait FrequencyDomainOperations<S, T> where
S: ToSliceMut<T>,
T: RealNumber, { fn mirror<B>(&mut self, buffer: &mut B)
where
B: for<'a> Buffer<'a, S, T>; fn fft_shift(&mut self); fn ifft_shift(&mut self); }
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: for<'a> Buffer<'a, S, T>,
B: for<'a> Buffer<'a, 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(&mut self)
Swaps vector halves after a Fourier Transformation.
fn ifft_shift(&mut self)
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> as ToTimeResult>::TimeResult: RededicateForceOps<DspVec<S, T, N, D>>,
S: ToSliceMut<T>,
T: RealNumber,
N: ComplexNumberSpace,
D: FrequencyDomain,