Test and Measurement
Generate waveforms and use quantitative tools to measure system performance. Use graphical utilities such as constellation and eye diagrams to visualize the effects of various impairments and corrections.
Supported file formats to process captured signals include binary baseband signal and NI™ technical data management solution (TDMS) format files. You can read data into tables or timetables by reading TDMS-files individually, or by reading collections of TDMS-files simultaneously.
|Wireless Waveform Generator||Create, impair, visualize, and export modulated waveforms|
|Bit Error Rate Analysis||Analyze BER performance of communications systems|
Bit Error Rate Calculation and Estimation
|Number of bit errors and bit error rate (BER)|
|Compute number of symbol errors and symbol error rate|
|BER and SER for uncoded data over AWGN channels|
|BER for coded AWGN channels|
|Error probability estimate and confidence interval of Monte Carlo simulation|
|BER and SER for uncoded data over Rayleigh and Rician fading channels|
|Fit curve to nonsmooth empirical BER data|
|BER for imperfect synchronization|
|BER using semianalytic technique|
|Display input signal in IQ-plane|
|Generate eye diagram|
|Plot response of phase noise filter block|
|Generalized Marcum Q-function|
|Equivalent noise bandwidth of digital lowpass filter|
|Inverse Q function|
|Communications Toolbox block characteristics|
|Read data from TDMS-file|
|Write data to TDMS-file|
|Information about TDMS-file|
|Read properties as single row table from TDMS-file|
|Write properties to TDMS-file|
|Measure adjacent channel power ratio (ACPR)|
|Compute bit or symbol error rate of input data|
|Measure error vector magnitude (EVM) of received signal|
|Measure modulation error ratio of received signal|
|Measure power and CCDF of the power of voltage signal|
|Display and analyze input signals in IQ-plane|
|Display frequency spectrum of time-domain signals|
|Display time-domain signals|
|Display vectors or arrays|
|Read baseband signal from file|
|Write baseband signal to file|
|Datastore for collection of TDMS-files|
|Error Rate Calculation||Compute bit error rate or symbol error rate of input data|
|EVM Measurement||Measure error vector magnitude (EVM)|
|MER Measurement||Measure modulation error ratio in digital modulation applications|
|Power Meter||Measure power and the CCDF of the power of voltage signal in Simulink|
|Constellation Diagram||Display and analyze input signals in IQ-plane|
|Eye Diagram||Display eye diagram of time-domain signal|
|Time Scope||Display and analyze signals generated during simulation and log signal data to MATLAB|
|Spectrum Analyzer||Display frequency spectrum|
|Baseband File Writer||Write baseband signals to file|
|Baseband File Reader||Read baseband signals from file|
- 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.
- Create Waveforms Using Wireless Waveform Generator App
Create, impair, visualize, and export modulated waveforms.
- Adjacent Channel Power Ratio (ACPR)
Learn about ACPR Measurements.
- 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.
- Eye Diagram Analysis
In digital communications, an eye diagram provides a visual indication of how noise might impact system performance.
- Selected Bibliography for Measurements
List of references for further reading.