Chapter 2 _______________________________________________ Introduction and Specifications
VAISALA_______________________________________________________________________ 19
CHAPTER 2
INTRODUCTION AND SPECIFICATIONS
2.1 RVP900 Lineage
The Vaisala product line has a three decade history of innovative,
high-quality signal processing products. The history of Vaisala products is
similar to the history of weather radar signal processing:
Year Model Units Sold Major Technical Milestones
1981 FFT 10 First commercial FFT-based Doppler signal
processor for weather radar applications.
Featured Simultaneous Doppler and intensity
processing.
1985 RVP5 161 First single-board, low-cost Doppler signal
processor. First commercial application of
dual PRF velocity unfolding algorithm.
1986 PP02 12 First high-performance commercial pulse pair
processor with 18.75 m bin spacing and 1024
bins.
1992 RVP6 150 First commercial floating-point, DSP
chip-based processor. First commercial
processor to implement selectable pulse pair,
FFT, or random phase second trip echo
filtering.
1996 RVP7 >200 First commercial processor to implement fully
digital IF processing for weather radar.
2003 RVP8 >400 First digital receiver/signal processor to be
implemented using an open hardware and
software architecture on standard PC
hardware running a Linux operating system.
Public APIs are provided so that customers
may implement their own custom processing
algorithms.
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