DOAJ Open Access 2014

Channel Phase Error Compensation for MIMO-SAR

Lei Zhang Yunkai Deng Robert Wang

Abstrak

Multi-input multioutput (MIMO) is a novel technique to achieve high-resolution as well as wide swath in synthetic aperture radar (SAR) systems. Channel imbalance is inevitable in multichannel systems that it declines the imaging quality. Generally, the imbalance cannot be fully compensated by simple internal calibration in a MIMO-SAR system. In this paper, a new algorithm based on raw data is presented to remove the channel phase error. Based on the error source, this approach models the phase error as two parts: the transmit phase error and the receive phase error. The receive phase error is removed using cost function at the azimuth processing stage, whereas the transmit phase error is estimated with correlation. Point target simulations confirm the influence of channel phase error and the validation of the proposed approach. Besides, the performance is also investigated.

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (3)

Lei Zhang

Yunkai Deng

Robert Wang

Format Sitasi

APA MLA BibTeX

Zhang, L., Deng, Y., Wang, R. (2014). Channel Phase Error Compensation for MIMO-SAR. https://doi.org/10.1155/2014/798673

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1155/2014/798673

Informasi Jurnal

Tahun Terbit: 2014
Sumber Database: DOAJ
DOI: 10.1155/2014/798673
Akses: Open Access ✓