WebIn SAR systems using a satellite platform, the amount of raw data to be transmitted to ground for processing is huge. Effort has to be spent to reduce the raw data. One technique that can be applied here is block adaptive quantization. For SAR systems, the raw data set is organised as a two-dimensional complex array (in-phase and quadrature) whose … WebThe Specific Absorption Rate (SAR) is a measure of the rate of electromagnetic energy absorbed in a lossy dielectric material. The SAR is a basic scalar field quantity that can …
One-Bit Quantization Design and Adaptive Methods for
WebDOI: 10.1109/ICMMT45702.2024.8992433 Corpus ID: 211207657; Adaptive One-bit Quantization for SAR Imaging @article{Han2024AdaptiveOQ, title={Adaptive One-bit Quantization for SAR Imaging}, author={Hao Han and Falin Liu and Zheng Wang and Yanwei Yin and Yuanhang Jia}, journal={2024 International Conference on Microwave … Webquadrature phase signals with 12 bit wide samples are passed onto block adaptive quantization modules to reduce the sample width to 4bits per sample. 32 range lines are considered as one batch since block size considered for BA Q is 32x32. With a sampling frequency of 250MHz, transmit pulse width of 33uS and imaging swath of 5km, jimmy buffett mexico
An adaptive SAR image compression method - ScienceDirect
WebMay 22, 2024 · In this study, we propose a novel one-bit compressed sensing synthetic aperture radar (SAR) imaging method with adaptive quantization in which the thresholds are updated adaptively, and the Logistic Regression algorithm with L1 norm … WebOct 22, 2010 · SNR mapping between SAR raw data before analog to digital converter (ADC) and after block adaptive quantization (BAQ) over the whole set of saturation degree is obtained using this model. When the power of echo is small with low SNR, after 1, 2, 3 or 4 bits BAQ compression, SNR has tiny difference among the four compression levels. WebMar 13, 2024 · By benefiting from one-bit sampling, the system deployment of synthetic aperture radar (SAR) can be greatly simplified. However, it usually requires a high oversampling rate to avoid the apparent degradation in imagery, which counteracts the storage-saving advantages. In this paper, a two-bit lightweight [...] Read more. jimmy buffett musical