🚀 go-pugleaf

	I am a grad student taking a laser applications course
and was assigned a project to design a laser radar detector.

What I need to know is:

	1) Do they use Doppler, time of flight, or both?
	2) If time of flight, what is the rep rate of the pulses?
	3) If Doppler, what frequency is the carrier modulated at?
	4) What is the wavelength of the laser used?

An old Popular Science (Sep. 90) reported that the time of flight
method was used with a pulse every 3ms.  My own opinion is that
Doppler isn't used because very high modulation frequencies would
be needed for good accuracy.???  If anyone knows of a standard or
the specs of a specific brand a short message would be very
helpful.


						Thanks in advance,
						Bill O'Donnell