Averaging of each measurement point is performed over several sweeps. The benefits of the averaging function are similar to those of IF bandwidth narrowing. It increases the signal-to-noise ratio and extends the dynamic range of measurements.
Averaging of each measurement point is made across multiple sweeps in accordance with the following formula:
where — -th sweep averaging result,
— -th sweep measurement parameter (S-parameter) value,
— averaging factor from 1 to 999; the higher the factor value, the stronger the averaging effect.
When the averaging function is enabled, the current number of iterations and the averaging factor, e.g. «9/10», will appear in the channel status bar. The averaging process is considered stable when the two numbers are equal.
Setting Averaging
Averaging should be set for each channel individually.
|
Click the Average button in the main menu. |
|
Select the channel in the Active Channel drop-down list in the submenu. NOTE You can quickly activate the channel by clicking on it in the channel window.
|
|
Toggle AVERAGING ON in the AVERAGING accordion in in the submenu.
|
|
Click the Average Factor textbox in the submenu and enter the number of sweeps for averaging. note After entering the Average Factor, the Averaged field will automatically display the current number of iterations in real time. |
|
