pulse-rate-question for eric

[Anonymous]

Hallo Eric and all,
I read already many of your very interesting postings in this forum. My
English is unfortunately very bad. I have therefore some problems to describe technical details in English as i could do in my native language.
Here is something i don't understand:
In some of your detectors you use a pulse rate of
7000 pps. why such a high rate. I think when you have a ground speed of the hottest spot say about
1 meter/sec -> 600 - 1000 pps should be enough -> because there's a pulse every 1mSec = 1mm??
would you please explain - is this to achieve greater stability?
thanks for your responding
Walter from Germany

 

[Anonymous]

Hi Walter,
I have tended to go for higher pulse rates as noise performance can be improved, as you are averaging the received signal over a greater number of samples. Also the response speed of the detector can be made faster, which gives sharper pinpointing.
Eric.