Graphical and quantitative analysis

Communications System Toolbox™ provides quantitative tools for measuring system performance. Use graphical utilities such as constellation and eye diagrams to visualize the effects of various impairments and corrections.

BER Analyzer | Analyze bit error rate (BER) performance of communications systems |

Eye Diagram Analyzer | Visualize and measure effects of impairments |

`comm.ACPR` |
Adjacent Channel Power Ratio measurements |

`comm.CCDF` |
Measure complementary cumulative distribution function |

`comm.ErrorRate` |
Compute bit or symbol error rate of input data |

`comm.EVM` |
Measure error vector magnitude |

`comm.MER` |
Measure modulation error ratio |

`comm.ConstellationDiagram` |
Display a constellation diagram for input signals |

`comm.EyeDiagram` |
Display eye diagram of time-domain signals |

`dsp.SpectrumAnalyzer` |
Display frequency spectrum of time-domain signals |

`dsp.TimeScope` |
Time domain signal display |

`dsp.ArrayPlot` |
Display vectors or arrays |

Error Rate Calculation | Compute bit error rate or symbol error rate of input data |

EVM Measurement | Measure error vector magnitude |

MER Measurement | Measure signal-to-noise ratio (SNR) in digital modulation applications |

Constellation Diagram | Display constellation diagram for input signals |

Eye Diagram | Display eye diagram of time-domain signal |

Time Scope | Display time-domain signals |

`biterr` |
Compute number of bit errors and bit error rate (BER) |

`symerr` |
Compute number of symbol errors and symbol error rate |

`berawgn` |
Bit error rate (BER) for uncoded AWGN channels |

`bercoding` |
Bit error rate (BER) for coded AWGN channels |

`berconfint` |
Bit error rate (BER) and confidence interval of Monte Carlo simulation |

`berfading` |
Bit error rate (BER) for Rayleigh and Rician fading channels |

`berfit` |
Fit curve to nonsmooth empirical bit error rate (BER) data |

`bersync` |
Bit error rate (BER) for imperfect synchronization |

`semianalytic` |
Calculate bit error rate (BER) using semianalytic technique |

`commtest.ErrorRate` |
Create error rate test console |

`scatterplot` |
Generate scatter plot |

`eyediagram` |
Generate eye diagram |

`commscope` |
Package of communications scope classes |

`commscope.eyediagram` |
Eye diagram analysis |

`commscope.ScatterPlot` |
Create Scatter Plot scope |

`EyeScope` |
Launch eye diagram scope for eye diagram object H |

Obtain numerical evaluation results

**Adjacent Channel Power Ratio (ACPR)**

Adjacent channel power ratio (ACPR) calculations (also known
as adjacent channel leakage ratio (ACLR)), characterize *spectral
regrowth* in a communications system component, such as a modulator or an analog front end.

EVM Measurements

EyeScope tutorial

**Scatter Plots and Constellation Diagrams**

Generating scatter plots

Apply various RF impairments to a QAM signal.

This example shows how to plot a PSK constellation having 16 points.

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