(8.D.2.7) ComplexDivide
- Sam Stuart
Overview
Multi-input complex divide
Discussion
Multi-input complex divide module. This block takes two input pins and has one output pin. The first input pin contains channels of sample data to be divided by the corresponding channel sample in the second input pin.
The second input pin must have either a single channel or the same number of channels as the first input pin.
If the second pin has only a single channel then each channel in the first input pin is divided by the corresponding sample in this single channel
The input samples may be all real or all complex but the output pin samples are always complex even if both input pins contain only real samples
This module does not protect against divide-by-zero conditions.
Type Definition
typedef struct _ModuleComplexDivide
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
} ModuleComplexDivideClass;Pins
Input Pins
Name: in1
Description: Audio input
Data type: float
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real and Complex
Name: in2
Description: Audio input
Data type: float
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real and Complex
Output Pins
Name: out
Description: Audio output
Data type: float
MATLAB Usage
File Name: complex_divide_module.m
M=complex_divide_module(NAME)
Creates a multi-input divide module for use in the Audio Weaver.
It performs four types of division:
1. ComplexByComplex Division
2. RealByComplex Division
3. ComplexByReal Division
4. RealByReal Division with output Complex
Arguments:
NAME - name of the module.
Any one of the two input pins may be real or complex.
The output pin is always complex.
For Bypass test, The input pin values are passed over to the output
pin. If the first input pin is real then the real values are copied to
the real part of the output and the imaginary values of the output pin
are made zeroes.
The output pin number of channels must be the same as the first input
pin number of channels.
The second input pin must have a single channel or the same number of
channels as the first pin.
The first pin channel samples are divided by the second pin channels.
Copyright (c) 2020 DSP Concepts, Inc. All Rights Reserved.
Author: Chris Perry