Vector Signal Analyzer (VSA) - INTERCONNECT Element

name

Defines the name of the element.

annotate

Defines whether or not to display annotations on the schematic editor.

enabled

Defines whether or not the element is enabled.

type

Defines the element unique type (read only).

description

A brief description of the elements functionality.

prefix

Defines the element name prefix.

model

Defines the element model name.

library

Defines the element location or source in the library (custom or design kit).

local path

Defines the local path or working folder $LOCAL for the element.

url

An optional URL address pointing to the element online help.

icon type

Defines the icon or element symbol view option.

configuration

Defines whether or not to enable I and Q ports.

signal reference input

Defines whether or not to enable the signal reference input port. The reference input port allows for automatic delay compensation of the input signal.

clock recovery

Defines whether or not to use the automatic synchronization delay.

synchronization delay I

The time delay to apply to the input signal.

synchronization delay Q

The time delay to apply to the input signal.

constellation diagram

Defines whether or not to calculate the constellation diagram.

bitrate

Defines the input signal bitrate.

ignore start symbols

The number of consecutive symbols at the begging of the signal waveform to be excluded from the constellation diagram.

ignore end symbols

The number of consecutive symbols at the end of the signal waveform to be excluded from the constellation diagram.

decision point

Defines whether or not to automatically determine the decision point for the constellation diagram.

decision instant

Defines the time instant for the constellation diagram detection decision points.

limit time range

Enables setting the time range( start/stop) of the analysis.

start time

Time instant to start the signal analysis.

stop time

Time instant to stop the signal analysis.

symbol map

Defines whether or not to use symbol maps for constellation diagram analysis.

scale factor I

The scale factor for the symbol map IQ values.

scale factor Q

The scale factor for the symbol map IQ values.

rotation

The rotation angle rotates the symbol map IQ values.

normalize IQ values

Defines whether or not to normalize symbol IQ values to the minimum and maximum reference IQ values.The error vector magnitude measurement depends on how the normalization is calculated. By default the reference IQ values are calculated from the input IQ values, or the vector diagram. If automatic mode is selected and the constellation diagram is enabled, the reference values will be taken from the constellation diagram IQ values. If automatic mode is selected and the calculate statistics is enable, the reference values will be taken from the mean IQ values

load map from file

Defines whether or not to load IQ values from an input file or to use the currently stored values.

symbol map filename

The file containing user defined IQ values. Refer to the Implementation Details section for the format expected.

modulation type

Defines the input signal modulation scheme. The user can choose between different standard modulation schemes.

symbol map table

The table allows the user to read or modified a symbol map by changing the position of one or more symbols.

color grading

Defines whether or not to enable color grading. It allows to color code the eye to display the frequency (histogram) at which a certain point in the eye is reached

binning size

The number of vertical and horizontal bins used to calculate the histogram required to generate the color grading.

smoothness

The number of samples used to smooth the color grading effect. It is equivalent to a average moving filter applied to each signal trace.

calculate statistics

Defines whether or not to calculate constellation diagram statistics. Statistics include 'mean level I', 'mean level Q', etc.

calculate measurements

Defines whether or not to calculate constellation diagram measurements. Measurements include 'EVM', 'SER', etc.

plot waveforms

Defines whether or not to plot waveforms. Waveforms include 'signal input I' and 'signal input Q'

minimum amplitude

The minimum detectable amplitude (real and imag) value.

input signal selection

Input signal selection option.

input signal index

The signal index to analyzed.

include delays

Defines whether inserted delays should be included as part of the signal or not.

refresh

Defines whether or not to update display and annotations during the simulation.

refresh length

Defines how ofter to update the element. This is the minimum number of new data values available at the element input port that will trigger the element update.

limit display memory

Defines whether or not to limit the number of values displayed in the element display.

display memory length

This is the number of data values used to update the display and annotations during the simulation.