【摘要】：分析回顧了雷達工程中,當前通用的方位俯仰極坐標框架下,無線電雷達跟蹤測量系統(tǒng)角偏差正割補償修正方法的由來及其局限性;提出了跟蹤指向坐標系的定義。利用坐標轉(zhuǎn)換原理給出了一種簡便易行的偏差無奇點精確修正推導新方法,并證明了新方法與通用的基于立體幾何推理方法的等價性,同時分析了新方法在雷達軸系偏差修正中的典型應(yīng)用及其對系統(tǒng)跟蹤測量精度的影響。對于89°仰角、方位俯仰角偏差均為3 mrad的情形,正割補償修正法指向計算存在6 759.2″的方位角誤差和63.5″的俯仰誤差。新的推理方法有利于極坐標框架下的空間目標高精度跟蹤與測量,尤其是高仰角過頂跟蹤性能、指向精度和跟蹤數(shù)據(jù)利用率的提高。
[Abstract]:This paper analyzes and reviews the origin and limitation of the correction method of angular deviation cutting compensation for radio radar tracking and measuring system under the current azimuth pitch polar coordinate framework in radar engineering, and puts forward the definition of tracking pointing coordinate system. Based on the principle of coordinate transformation, a simple and feasible method for deducing accurate correction of deviation without singularity is presented, and the equivalence between the new method and the general method based on stereo geometry is proved. At the same time, the typical application of the new method in radar shafting deviation correction and its influence on the tracking and measurement accuracy of the system are analyzed. For the case of 89 擄elevation angle and azimuth pitch angle deviation of 3 mrad, the Secant compensation correction method points to the existence of 6 759.2 "azimuth error and 63.5" pitch error. The new reasoning method is beneficial to the high precision tracking and measurement of spatial targets in polar coordinate framework, especially the tracking performance of high elevation angle, the improvement of pointing accuracy and the utilization ratio of tracking data.
【作者單位】： 中國衛(wèi)星海上測控部飛行器海上測量與控制聯(lián)合實驗室;
【基金】：國家自然科學基金項目(61403421)
【分類號】：V556
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本文編號：2500713