EngeeComms.GeneralQAMModulatorBaseband

Modulation using quadrature amplitude modulation usage.

Library	`EngeeComms`
Block	General QAM Modulator Baseband

Description

The system object GeneralQAMModulatorBaseband modulates the signal using the quadrature amplitude modulation method. The output is a basic representation of the modulated signal.

Property Constellation defines a constellation by listing its points in a vector of complex numbers of length . The input values must be integers in the range . The system object matches the input integer with the value in the signal constellation vector.

To modulate the signal using the quadrature amplitude modulation method, follow these steps:

Create an object EngeeComms.GeneralQAMModulatorBaseband and set its properties.
Call an object with arguments as if it were a function.

To learn more about how to work with system objects, see Engee System Objects.

Syntax

Creation

qammod = EngeeComms.GeneralQAMModulatorBaseband() — creates a system object qammod to modulate the signal using the quadrature amplitude modulation method with the properties by default.

Example:
```
qammod = EngeeComms.GeneralQAMModulatorBaseband()
```
qammod = EngeeComms.GeneralQAMModulatorBaseband(Name=Value) — creates a system object qammod to modulate a signal using the quadrature amplitude modulation method with specified properties in the form of a pair Name=Value, where Name — the name of the property, and Value — appropriate value. You can specify multiple pairs «name-value» the order of the pairs does not matter. Unspecified properties retain their by default values.

Usage

outsignal = qammod(insignal) — modulates the signal using the quadrature amplitude modulation method, as indicated on qammod. The result is returned in outsignal.

Arguments

Input arguments

In — input signal

+ vector | scalar

Details

The input signal is in the form of a scalar or vector with the values of the elements in the range of values , where — modulation order. If a binary vector is given, then the number of elements must be an integer multiple of the number of bits per character. The number of bits per character is .

Типы данных

Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Output arguments

Out — modulated signal

+ vector | scalar

Details

Modulated baseband signal; complex scalar or vector.

Типы данных

ComplexF64

Properties

# Constellation — signal constellation
Vector of ComplexF64

Details

A real or complex vector that lists the points of the constellation.

Data types

ComplexF64

Methods

Common to all system objects

step!

Run the algorithm of the system object