How can I generate a noise with a required sensitivily power ? i.e. -174 dBm

2 次查看（过去 30 天）
Allen Peng
Allen Peng 2014-3-7
回答： Iain 2014-3-7
DEAR ALL:
Iwant to simulate a RF system, the question is how can I generate a noise with a required sensitivily power ? i.e. -174 dBm. Please help me, thanks

请先登录，再回答此问题。

回答（2 个）

Paul
Paul 2014-3-7
编辑：Paul 2014-3-7
Iain
Iain 2014-3-7
First: calculate the power value.
-174dBm, is 17.4 orders of magnitude down from "milli", so
noise_RMS = 0.001 * 10^-17.4;
Calculate a random signal of "x" elements:
random = randn(x,1);
Scale it to the right "rms"
noise_RMS*power

类别

在 Help Center 和 File Exchange 中查找有关 Signal Generation 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by