scipy.signal.
symiirorder1#
- scipy.signal.symiirorder1(signal, c0, z1, precision=-1.0)[source]#
- Implement a smoothing IIR filter with mirror-symmetric boundary conditions using a cascade of first-order sections. - The second section uses a reversed sequence. This implements a system with the following transfer function and mirror-symmetric boundary conditions: - c0 H(z) = --------------------- (1-z1/z) (1 - z1 z) - The resulting signal will have mirror symmetric boundary conditions as well. - Parameters:
- signalndarray
- The input signal. If 2D, then the filter will be applied in a batched fashion across the last axis. 
- c0, z1scalar
- Parameters in the transfer function. 
- precision
- Specifies the precision for calculating initial conditions of the recursive filter based on mirror-symmetric input. 
 
- Returns:
- outputndarray
- The filtered signal.