Abstract
The Tropical Rainfall Measuring Mission (TRMM) satellite carried aboard the world's first spaceborne precipitation radar (PR). This paper describes a short history of the TRMM PR. It describes the Communications Research Laboratory's (CRL's) airborne dual-frequency rain radar/radiometer system, some results of the airborne experiments, and considerations of system design and system parameters of the PR. It also describes data processing and analysis algorithms for the PR, and examples of PR rain measurements.
