High-resolution parameter estimation for chirp-sequence radar considering hardware impairments
High-resolution parameter estimation for chirp-sequence radar considering hardware impairments
复制标题
考虑硬件损伤的线性调频序列雷达高分辨率参数估计
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
G. D. Galdo
中科院分区：
文献类型：
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作者：
S. Häfner;André Dürr;R. Thomä;C. Waldschmidt;G. D. Galdo
参数信号处理被认为是克服瑞利分辨率限制，这是表示为高分辨率的雷达测量。需要根据雷达系统和目标参数描述测量数据的模型。本文研究了一种具有展宽处理接收机结构的线性调频脉冲序列雷达，推导了相应的系统模型。基于最大似然法和数据模型，推导了一种参数估计器，用于从测量数据中推断目标参数距离和雷达散射截面。推导出的雷达系统模型通过应用估计器对真实的测量数据进行验证。
Parametric signal processing is considered for radar measurements to overcome the Rayleigh resolution limit, which is denoted as high resolution. A model describing the measurement data in terms of the radar system and the target parameters is required. A chirp-sequence radar with a stretch processing receiver architecture is considered and an according system model is derived. Based on the maximum-likelihood method and the data model, a parameter estimator is derived to infer the target parameters range and radar cross section from the measurements. The derived radar system model is verified by application of the estimator to real measurement data.