Echo-Domain Phase Synchronization Algorithm for Bistatic SAR in Alternating Bistatic/Ping–Pong Mode
| Autor: | Diannong Liang, Junli Chen, Haifeng Huang, Feng He, Zhen Dong, Zhihua He |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Synthetic aperture radar
Computer science Echo (computing) Phase (waves) Geotechnical Engineering and Engineering Geology Phase synchronization Bistatic radar Noise ComputingMethodologies_PATTERNRECOGNITION Synchronization (computer science) ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS Satellite Hardware_ARITHMETICANDLOGICSTRUCTURES Electrical and Electronic Engineering Algorithm |
| Zdroj: | IEEE Geoscience and Remote Sensing Letters. 9:604-608 |
| ISSN: | 1558-0571 1545-598X |
| DOI: | 10.1109/lgrs.2011.2176714 |
| Popis: | When bistatic synthetic aperture radar (SAR) works in alternating bistatic/ping-pong mode, it can perform phase referencing without a synchronization link between different satellites. The key to this is to extract a compensation phase from the bistatic echoes, including oscillator phase differences. An echo-domain phase synchronization algorithm using the correlation of bistatic echoes is proposed. Because of its larger equivalent synchronization frequency, the echo-domain algorithm has higher phase synchronization accuracy than the algorithm in the image domain. Experiments using simulated bistatic echoes with real single-stripmap SAR echo validate the proposed echo-domain phase synchronization algorithm. |
| Databáze: | OpenAIRE |
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