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Vaisala Sigmet Digital Receiver and Signal Processor RVP900
Overview
- The RVP900™ Sigmet Digital Receiver and Signal Processor provides comprehensive digital IF and signal processing functions on an open Linux PC platform
- 100 MHz, 16-bit IF sampling improving sensitivity and dynamic range in 5 independent channels
- 38.4 Billion multiply accumulates cycles per second which is a x5 increase over the RVP8™
- RVP900™ Sigmet is compatible with any PC server using a Ethernet interface. The next generation hardware is the next faster PC chip.
- Independent and parallel FIR filtering allowing dual pulse width and dual frequency strategies on each receive channel
- Dual Polarization, Wide Dynamic Range, and Pulse Compression ready
Technical Specifications
| IF Digital Receiver | |
| FIVE IF INPUTS | |
| IF Range | 5-120 MHz |
| Saturation Level | +8.0 dBm @ 50ohm |
| Dynamic Range (dependent on matched filter) | 90 to >105 dB |
| Optional wide dynamic range mode | >120 dB |
| A/D Resolution | 16 bits |
| Sampling Rate | 50 - 100 MHz |
| Master Clock jitter | <1.0 picosec |
| Multiply/accumulate cycles per second (5X greater than RVP8/IFD) | 38.4 billion Hz |
| Pulse Repetition Frequency | 50 Hz to 20 KHz |
| Impulse Response | 3024 FIR taps(Up to 80 microseconds) |
| Minimum Range Resolution | 15 meters (accuracy of ±1.5 m) |
| Maximum Range | 1024 km |
| Maximum number of range bins | 4200 |
| PHASE STABILITY | |
| Klystron | Better than 0.1 degrees |
| Magnetron (for 1.0 microsecond pulse) | Better than 0.5 degrees |
| IF WAVEFORM GENERATOR | |
| Two 16-bit TxDAC outputs | 5-65 MHz >65 dB SNR +13dBm @ 50ohm |
| TxDDS output | 5-105 MHz >65 dB SNR +13dBm @ 50ohm |
| MISCELLANEOUS I/O | |
| RS-422 | 20 Differential Line Pairs |
| TTL/CMOS | Lines 20 open-ended lines |
| Analog input | 6 differential pairs ±10V |
| Signal Processor | |
| Processing Modes | PPP, DFT with GMAPTM, Random Phase 2nd trip filtering/recovery |
| Data Outputs (8 or 16 bit) | Z, V, W, SQI, ZDR, LDR, RHOHV, PHIDP, and KDP, I/Q, Doppler Power Spectrum |
| Dual Polarization | Alternating, Simultaneous, H-Only |
| Azimuth Averaging | 2 to 1024 Pulses |
| Dual PRF | Velocity De-aliasing 2:3, 3:4, or 4:5 for 2X, 3X, or 4X de-aliasing |
| Clutter Filters | IIR, Fixed and Adaptive Width GMAPTM >60dB rejection |
| Physical and Environmental | |
| INPUT POWER | |
| Digital Receiver | 85-264 VAC 50/60 Hz or 12-36 VDC |
| Signal Processor | 100 - 240V, 50 - 60Hz |
| ENVIRONMENTAL | |
| Digital Receiver (non-condensing) R.H. | -40 °C - 50 °C operating, 0 - 95% |
| Signal Processor (non-condensing) R.H. | 10 °C - 35 °C operating, 8 - 90% |
| RELIABILITY | |
| Digital Receiver | >50,000 Hours MTBF (at 25 °C),< 1 hour MTTR |
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