Efficient and steady multi-baseline UKF phase-unwrapping method
A phase unwrapping and multi-baseline technology, which is applied in the radio wave measurement system, radio wave reflection/re-radiation, and re-radiation, can solve the problems of low efficiency and performance, improve efficiency, improve algorithm accuracy, and improve algorithms efficiency effect
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[0023] An efficient and robust multi-baseline UKF phase unwrapping method, which specifically includes the following steps:
[0024] Step 1: Use the joint phase gradient estimation technique based on AMPM to obtain the long baseline interferometric phase gradient estimation information from the short baseline interferogram.
[0025] Step 2: Define the interferogram path guide map, normalize the interferogram path guide map and quantize it into an integer to guide the phase unwrapping path.
[0026] Step 3: Combining with the strategy of quantitative path guidance map, and on the basis of obtaining the long-baseline interferometric phase gradient, use the UKF phase unwrapping algorithm to directly expand the long-baseline interferogram along the path from the high-quality area to the low-quality area of the interferogram. which is
[0027] Step 3.1: Create an empty queuing array, define the pointer opt pointing to the pixel to be expanded with the largest guiding value of th...
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