Name
Abstract | ||
|---|---|---|
In this paper the calibration of the University of Mas- sachusetts Advanced Multi-Frequency Radar (AMFR) is discussed in detail. The calibration is performed primar- ily through the use of an internal calibration path, and is confirmed through cross-calibration with another cali- brated radar. Additionally, the performance of AMFR during the 2007 Canadian CloudSat/CALIPSO Validation Project (C3VP) (1) is demonstrated with respect to calibration and instrument stability. It is shown that the calibration during the C3VP experiment was accurate to within 1.5dB when com- pared with a C-band weather radar operated by Environment Canada. during future experiments. The calibration goal is to remove gain variations and to determine the conversion required to produce accurate reflectivity measurements from the received signal. The methodology incorporates an internal calibration path to adjust for transmitter/receiver variations and cross- calibration with another radar to address absolute calibration accuracy. The internal calibration path gives an indication of the sta- bility of the AMFR instrument and is used to mitigate the ef- fect of gain variations in the active circuitry. Additionally, estimation of the stability of this calibration path and how it affects the long-term performance of the end-to-end system is provided. External calibration is performed by comparing AMFR reflectivities with the King City weather radar in Ontario. The uncertainty and stability of current calibration is addressed. This calibration data is used to evaluate the performance of AMFR during the C3VP experiment and to provide insight into the future use of the radar. Due to an unreliable klystron modulator, the W-band transmitter was not available for the C3VP experiment. Hence, only the calibration of the Ku- and Ka- band radar subsystems is addressed. Parameter Ku-band Ka-band W-band |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/IGARSS.2008.4780038 | IGARSS |
Keywords | Field | DocType |
calibration,remote sensing,c3vp,index terms— multi-frequency radar,information gain,switches,indexing terms,particle size,system design,signal processing,snow,gain,meteorology,frequency,atmospheric science,weather radar,radar | Radar,Meteorology,Doppler radar,Radar remote sensing,Weather radar,Cross Calibration,Computer science,Remote sensing,Radar antennas,Snow,Calibration | Conference |
Citations | PageRank | References |
0 | 0.34 | 1 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Matthew McLinden | 1 | 2 | 0.80 |
| Paul Siqueira | 2 | 128 | 29.52 |
| Ninoslav Majurec | 3 | 20 | 3.98 |