Meteor 200 is an X-band non coherent weather radar completely implemented by means of analog technology. To enhance its operation, a processing system based on a digital signal processing board in a personal computer has been devised. The system has been realized using a low cost digital signal processor (DSP) printed circuit board based on the TMS 320 C30 (Texas Instruments) device and supplied by the radar meteorology group of the IFA/CNR (Institute for Atmospheric Physics/National Council of Research, Italy). The printed circuit board accepts as an input the radar trigger, the radar video and the clock; the latter can be internal or external to the radar. The board performs A/D conversion, acquisition and processing of radar signals from 500 to 900 range bins per sweep; the processing permits the computation of reflectivity factor by azimuth averaging either on log scale, or on (reconstructed) linear scale, or both. In this way a flexible signal processing is obtained, very suited to research purposes. The architecture has been implemented in his hardware and software parts and some test results have been obtained.
Galati, G., Russo, G., Dargaud, G., Pavan, G. (2002). Low cost digitalization of an X-band, non coherent weather radar. In IGARSS'97: 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings: remote sensing: a scientific vision for sustainable development (pp.833-835). IEEE [10.1109/IGARSS.1997.615271].
Low cost digitalization of an X-band, non coherent weather radar
Galati, Gaspare;Russo, Giorgio;Pavan, Gabriele
2002-01-01
Abstract
Meteor 200 is an X-band non coherent weather radar completely implemented by means of analog technology. To enhance its operation, a processing system based on a digital signal processing board in a personal computer has been devised. The system has been realized using a low cost digital signal processor (DSP) printed circuit board based on the TMS 320 C30 (Texas Instruments) device and supplied by the radar meteorology group of the IFA/CNR (Institute for Atmospheric Physics/National Council of Research, Italy). The printed circuit board accepts as an input the radar trigger, the radar video and the clock; the latter can be internal or external to the radar. The board performs A/D conversion, acquisition and processing of radar signals from 500 to 900 range bins per sweep; the processing permits the computation of reflectivity factor by azimuth averaging either on log scale, or on (reconstructed) linear scale, or both. In this way a flexible signal processing is obtained, very suited to research purposes. The architecture has been implemented in his hardware and software parts and some test results have been obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
