Wide signal measurement method and device considering signal-to-noise ratio

[0025] This embodiment introduces a wide-band signal measurement method that takes into account the signal-to-noise ratio, including:

[0026] Receive a wide dynamic input signal, and perform detection and amplitude comparison processing on the signal, wherein, when the signal amplitude is greater than the preset threshold value, control the gating branch 1, and the signal passes through the through branch, and when the signal amplitude is smaller than the threshold value When , control the strobe 2 branches, amplify the signal and output it;

[0027] The amplified signal is input to the numerical control ATT, and the input signal is controlled to be stable at the received nominal power value.

[0028] A fixed attenuator and an amplifier are arranged between the gating 1 branch and the gating 2 branch.

[0029] The gain difference between the gating 1 branch and the gating 2 branch is a fixed value A, and a digitally controlled attenuation B is cascaded after the switch is co...

[0038] This embodiment provides a wide-band signal measurement device that takes into account the signal-to-noise ratio, including:

[0039] The processing unit is used to receive a wide-amplitude input signal, and perform wave detection and amplitude processing on the signal. When the signal amplitude is greater than the preset threshold value, control the gating branch 1, and the signal is output directly. When the signal amplitude is smaller than the threshold value When the value is high, control the strobe 2 branches, amplify the signal and output it;

[0040] The control unit is used to pass the processed signal through the numerically controlled attenuator, and finally control the input signal to be stable at the received nominal power value.

[0041] Further, a fixed attenuator and an amplifier are provided between the Gate 1 branch and the Gate 2 branch.

[0042] Further, the gain difference between the gating 1 branch and the gating 2 branch is a fixed value A, and ...

[0044] This embodiment provides a wide-band signal measurement device that takes into account the signal-to-noise ratio, including a processor and a storage medium;

[0045] The storage medium is used to store instructions;

[0046] The processor is configured to operate in accordance with the instructions to perform the steps of any of the following methods:

[0047] Receive a wide-range input signal, and perform wave detection and ratio processing on the signal. When the signal amplitude is greater than the preset threshold value, the control selects 1 branch, and the signal is output directly. When the signal amplitude is smaller than the threshold value, the control selects Through 2 branches, the signal is amplified and output;

[0048] The amplified signal is input into the numerically controlled attenuator, and finally the input signal is controlled to stabilize at the nominal power value received.

[0049] A fixed attenuator and an amplifier are arranged between the ...