Hellow Aabid,
I want to share a research paper of IEEE with heading “An Adaptive Threshold Detector and Channel Parameter Estimator
for Deep Space Optical Communications”, which i like to share to you.
I have gained some idea about dynamic threshold and its advantages from this paper.
It is:
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=965078
Thank