منابع مشابه
Pulse compression for weather radars
Wideband waveform techniques, such as pulse compression, allow for accurate weather radar measurements in a short data acquisition time. However, for extended targets such as precipitation systems, range sidelobes mask and corrupt observations of weak phenomena occurring near areas of strong echoes. Therefore, sidelobe suppression is extremely important in precisely determining the echo scatter...
متن کاملReal-Time Adaptive Data Compression for Weather Radars
A bit (either 0 or 1) is the smallest, most basic form in which information can be measured. The objective of compression is reduce the number of bits required to represent a signal by removing redundant or unnecessary information to reduce the signal.s storage requirements, yet allow its reconstruction [1]. The term “compression ratio” is the key metric that describes the bit savings. It is th...
متن کاملPolarimetry for Weather Surveillance Radars
Scientific evidence accumulated over the last decade indicates that weather radar polarimetry has passed two important tests. First, as suggested by theory, polarimetric signals contain significant information about hydrometeor habits; and second, the information can be retrieved with sufficient accuracy to be useful. If it passes the cost effectiveness test, the technique should be adopted for...
متن کاملHigh Resolution Weather Radar through Pulse Compression
In order to evaluate pulse compression for use in phased array weather radar systems, modifications to the Time-Series Weather Radar Simulator have been made which incorporate phase-coding into its functionality. This allows for evaluating the performance of various pulse compression schemes under controlled conditions. Barker-coded pulses with matched and mismatched filters were examined in re...
متن کاملAssessment of Weighting Functions Used in Oppermann Codes in Polyphase Pulse Compression Radars
Polyphase is a common class of pulse compression waveforms in the radar systems. Oppermann code is one of the used codes with polyphone pattern. After compression, this code has little tolerant against Doppler shift in addition to its high side lobe level. This indicates that the use of Oppermann code is an unsuitable scheme to radars applications. This paper shows that the use of amplitude wei...
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ژورنال
عنوان ژورنال: IEEE Transactions on Geoscience and Remote Sensing
سال: 1998
ISSN: 0196-2892
DOI: 10.1109/36.655323