Question

Given: The NASA KU-band altimeter deployed on the Topex/Poseidon mission had the following characteristics: frequency 13.6 Ghz pulse length 102.4 microseconds bandwidth 320 MHz peak transmitted power 43 dBm effective antenna diameter 1.5 m orbit circular altitude 1336 km The average NRCS of the sea surface observed by Topex @ Ku-band was 00 = 10 dB. Question: What is the single-pulse signal-to-noise ratio before and after pulse compression?

Answer 1

IN Solo Given that Bandwidth = 320 MHZ Pulse length= 102.4 us frequency = 13.6 Ghz circular altitude = 1336km orbit a transmitted power =43dBm Range resolution is calculated by using the relation RF a Where C = speed of light = 3x10$ mis B = Bandwidth of signal = 320 MHZ 3x108 2x320 = 0.47m cs: Scanned with CamScanner!