Verifica e misurazione
Generare forme d'onda e utilizzare strumenti quantitativi per misurare le prestazioni del sistema. Utilizzare strumenti grafici quali costellazioni e diagrammi oculari per visualizzare gli effetti dei vari disturbi e correzioni.
I formati di file supportati per l'elaborazione dei segnali acquisiti comprendono segnali binari in banda base e file in formato NI™ technical data management solution (TDMS). È possibile raccogliere i dati in tabelle o orari leggendo i file TDMS singolarmente o leggendo raccolte di file TDMS simultaneamente.
App
| Wireless Waveform Generator | Create, impair, visualize, and export modulated waveforms |
| Bit Error Rate Analysis | Analyze BER performance of communications systems |
Funzioni
Oggetti
Blocchi
Argomenti
- Bit Error Rate Analysis Techniques
Obtain bit error rate results and statistics.
- Analyze Performance with Bit Error Rate Analysis App
Learn how to use the Bit Error Rate Analysis app.
- Calcolo del BER per sistemi QAM con AWGN utilizzando MATLAB
Le feature Communications Toolbox™ si basano sugli strumenti computazionali e di visualizzazione MATLAB®, consentendo di utilizzare funzioni di livello superiore nella simulazione di sistemi di comunicazione.
- PASSAGGIO 1: Analisi di 16-QAM utilizzando MATLAB
- PASSAGGIO 2: Utilizzo della modellazione dell’impulso su segnale 16-QAM
- PASSAGGIO 3: Utilizzo della correzione dell’errore in avanti sul segnale 16-QAM
- Create Waveforms Using Wireless Waveform Generator App
Create, impair, visualize, and export modulated waveforms.
- ACPR Measurements Using WCDMA Signal
This example shows you how to obtain adjacent channel power ratio (ACPR) measurements using a WCDMA communications signal, according to the 3GPP™ TS 125.104 standard [1].
- Measure Modulation Accuracy
Learn about EVM and MER for measuring modulation accuracy.
- Scatter Plots and Constellation Diagrams
Display digitally modulated signals in the IQ-plane.
- Visualize RF Impairments
Apply various RF impairments to a QAM signal.
- Plot Signal Constellations
Show reference constellation plots for 16-PSK modulation of Gray-coded and binary-coded symbol mapping by setting
PlotConstellation=truewhen using the modulation function. - VITA 49 Packet Format
Explore the signal data packet and context data packet format of VITA 49 file.
- Selected Bibliography for Measurements
List of references for further reading.
Informazioni complementari
Esempi in primo piano
Link Budget Analysis
Demonstrate analyze link budgets in the design of wireless communications links between two sites considering issues of range, throughput, and received signal quality of critical importance to the system engineer.
Measure EVM for 802.15.4 (ZigBee) System
Measure EVM of simulated IEEE 802.15.4 transmitter.
Frequency Offset Calibration for Receivers
At the receiver, measure and calibrate to remove the frequency offset between a transmitter and a receiver.
Frequency Offset Calibration for Receivers in Simulink
Measure and calibrate for transmitter/receiver frequency offset at the receiver in a Simulink simulation.
Spectrum Analysis of Signals
Downstream spectrum analysis of signals using MATLAB, Communications Toolbox and DSP System Toolbox™.
Spectrum Analysis of Signals in Simulink
Use the captured signals, or receive signals in real time using RTL-SDR, ADALM-PLUTO or USRP™ radio, as a data source for downstream spectrum analysis with MATLAB and Simulink®.
VITA 49 File Reader
Read signal time data packets and the associated metadata (context packet data) from a VITA 49 format file.
