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.
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|
|Measure adjacent channel power ratio (ACPR)|
|Complementary cumulative distribution function (CCDF) measurements|
|Compute bit or symbol error rate of input data|
|Measure error vector magnitude (EVM) of received signal|
|Measure modulation error ratio of received signal|
- 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
This example shows how to plot a PSK constellation having 16 points.
- 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.