Table 10.

Radar Parameters Adjustable Over a Flyby

Radar Parameter	Description
Pulse Repetition Frequency (PRF)	Used to collect the desired along-track density of measurements and to optimize usage of the round-trip echo travel times (more than one pulse may be in the air at one time). In the OP, this is also referred to as the Cycle Repetition Frequency (CRF), as the dual-frequency PRF may be more complex than in a single frequency radar.
Chirp (transmit pulse)	Used to optimize SNR given round-trip echo time and the PRF
Receive window duration and position	Used to collect surface and subsurface echoes
Receiver gain	Used to correct for echo power variations with altitude and environment
Number of on-board pre-summed pulses	Used to limit data volume
Number of bits in digitized echo	Used to limit data volume while maintaining dynamic range