隨機信號與噪聲东西集

温度(T - 摄氏)
利用带宽(Δf - Hz)
电阻(R - 欧姆)
噪聲電壓Vn= (微伏)
噪声程度 Lu= (dBu)
噪声程度 LV= (dBV)

Formula for the RMS noise voltage:

Vn =sqrt( 4 * kB * T *If *R )

Lu in dBu has the reference voltage V0 = 0.7746

and LV in dBV has the reference voltage V0 = 1 V

Boltzmann constant kB = 1.3806505*10-23 J/K (joule/kelvin); J=W?s

Absolute temperature in kelvin T = 273.15

Bandwidth being considered .If = f2 - f1 = fmax - fmin in Hz; 20 kHz - 20 Hz = 19980 Hz。

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