Vaisala RVP900, User Manual

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Table of Contents
1. About This Document .................................................................................... 13
1.1 Version Information ........................................................................................... 13
1.2 Related Documents ........................................................................................... 13
1.3 Documentation Conventions ............................................................................14
1.4 Trademarks ......................................................................................................... 14
2. Product Overview ............................................................................................ 15
2.1 RVP900 Product Architecture ..........................................................................15
2.2 Regulatory Compliances ................................................................................... 16
2.2.1 WEEE Compliance .......................................................................................16
2.2.2 RoHS Compliance ........................................................................................16
2.3 Safety ...................................................................................................................18
2.3.1 ESD Protection .............................................................................................19
2.4 Product Nomenclature ...................................................................................... 19
3. Functional Description .................................................................................. 21
3.1 RVP901 IF Digital Receiver ................................................................................21
3.1.1 RVP901 IFDR Data Capture and Timing ...................................................22
3.1.2 RVP901 IFDR IF to I and Q Processing ..................................................... 23
3.1.3 Digital Receiver Function ...........................................................................23
3.1.4 Digital Transmitter Function ......................................................................29
3.1.5 Magnetron Receiver Example .................................................................... 31
3.1.6 Klystron or TWT Receiver and Transmit RF Example ............................ 35
3.2 RVP902 Signal Processing Computer ............................................................ 36
3.2.1 LAN Connection for Data Transfer or Parallel Processing ..................... 37
3.2.2 Open Hardware and Software Design ......................................................37
3.2.3 RVP902 Socket Interface ...........................................................................37
3.2.4 RVP902 Socket Protocol ........................................................................... 38
3.2.5 Public API ....................................................................................................40
3.3 RVP900 Weather Signal Processing ..............................................................40
3.3.1 Burst Pulse Analysis for Amplitude, Frequency, and Phase ..................42
3.3.2 Time (Azimuth) Averaging ........................................................................43
3.3.3 TAG Angle Samples of Azimuth and Elevation .......................................43
3.3.4 Range Averaging and Clutter Microsuppression ....................................44
3.3.5 Moment Extraction .....................................................................................44
3.3.6 Threshold Processing .................................................................................44
3.3.7 Speckle Filter .............................................................................................. 44
3.3.8 Velocity Unfolding ......................................................................................45
3.3.9 Autocorrelations .........................................................................................45
3.3.10 Output Data .................................................................................................47
3.4 Radar Control Functions .................................................................................. 48
3.5 Configuration and Monitoring .........................................................................49
3.6 Digital AFC (DAFC) .......................................................................................... 50
3.7 Expansion Panels ..............................................................................................50
3.8 Utilities and Applications .................................................................................50
3.9 Network Architecture ........................................................................................ 51
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