How can i improve Mini. BER using Serdes Toolbox in Simulink?

1 次查看(过去 30 天)
In Serdes Toolbox of simulink, setting target BER to 1e-6 or less doesn't work and the mini. BER of my system is always around 1e-5. My system includes:
PRBS -> channel (8-dB loss in Nyquist point) -> Recevier (VGA->CTLE->FFE->AGC)
How can i improve mini.BER? Is my system structure wrong (like i need some DSP module)? Or there is other environmental configuration?

回答(2 个)

Nithin
Nithin 2023-11-14
I believe the MinBER in serdes tool box has nothing to do with eye quality, its just shows 1/(Total number of Symbols- Ignored bits). Just increasing your total number of symbols should solve the problem in this case .

Naren
Naren 2023-4-25
Hello Ruixian,
Noise, Signal Distortion in the circuit components are a few of the variables that can lead to a minimum BER. Here are possible solutions to raise the minimum BER.
  • By increasing transmitted signal’s power or lowering receiver or channel noise, you can improve the signal-to-noise ratio (SNR). Increasing the CTLE (Continuous Time Linear Equaliser) gain can help minimise noise by widening the receiver's bandwidth.
  • To enhance signal quality, change the receiver's equalisation settings. For instance, you can modify the FFE (Feed-Forward Equaliser) taps to enhance the equalizer's response.
  • If there are any substantial signal distortions or losses, check the frequency response of your channel and receiver. To determine the frequency response of the elements in your circuit, utilise a frequency response analyser.
  • Make that the impedances of your transmitter and receiver are correctly matched. Signal reflections brought on a mismatched impedance might result in signal distortion and higher BER.
  • Verify the PRBS (Pseudo-Random Binary Sequence) signal's quality. A long enough length and proper generation and transmission are required to prevent pattern-dependent effects
To further enhance signal quality, think about utilising DSP (Digital Signal Processing) methods like adaptive equalisation, error correction coding, or noise reduction algorithms.

类别

Help CenterFile Exchange 中查找有关 Design and Simulate SerDes Systems 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by