Stokes Andrew J, Dierking Matthew P, Rabb David J
Appl Opt. 2017 Jun 10;56(17):5003-5012. doi: 10.1364/AO.56.005003.
This paper describes a multi-static interferometric synthetic aperture ladar (IFSAL) for high-resolution, high-precision 3D imaging. Code division multiple access apertures with periodic, pseudorandom noise waveforms are used to create aperture diversity and overcome the ambiguity associated with the aperture separation requirements for interferometric synthetic aperture ladar. The basic theory for mapping relative aperture phase to a high-precision elevation profile is derived for a multi-static IFSAL system and subsequent processing steps are presented. An analytic model and computer simulation are developed to demonstrate the 3D imaging capability of an IFSAL system.
本文描述了一种用于高分辨率、高精度三维成像的多基地干涉合成孔径激光雷达（IFSAL）。采用具有周期性伪随机噪声波形的码分多址孔径来实现孔径分集，并克服干涉合成孔径激光雷达中与孔径分离要求相关的模糊性。推导了多基地IFSAL系统将相对孔径相位映射到高精度高程剖面的基本理论，并给出了后续处理步骤。建立了一个解析模型和计算机仿真，以证明IFSAL系统的三维成像能力。
