本文選題：比幅測角　切入點：毫米波雷達　出處：《微波學(xué)報》2014年06期

【摘要】：雷達信號處理主要目的是實現(xiàn)對目標角度的跟蹤,伺服系統(tǒng)根據(jù)角誤差驅(qū)動并調(diào)整天線方向,因此角誤差的計算直接決定了跟蹤速度。本文提出了一種基于坐標平面旋轉(zhuǎn)的比幅測角方法,在誤差允許的范圍內(nèi),進行多次坐標旋轉(zhuǎn)簡化運算同時給出角誤差符號位,經(jīng)流水級除法器計算,在200M工作頻率下所提方法的整個測角過程僅需105 ns即可得到角誤差結(jié)果。在SMIC 0.13μm CMOS工藝下對兩種方法設(shè)計電路進行流片測試,結(jié)果表明所提方法與基于求模算法的比幅測角方法相比,降低功耗62%,面積減少27.5%,性能表現(xiàn)更優(yōu),驗證了該方法的有效性。
[Abstract]:The main purpose of radar signal processing is to track the target angle. The servo system drives and adjusts the antenna direction according to the angle error. Therefore, the calculation of angular error directly determines the tracking speed. In this paper, a new method of measuring the relative amplitude angle based on coordinate plane rotation is proposed. Within the range of error allowed, several coordinate rotation simplification operations are carried out and the angular error symbol bit is given. According to the calculation of income divider, the angular error results can be obtained in the whole angular measurement process of the proposed method at 200m operating frequency in only 105ns. The flow sheet test of the two methods is carried out under the SMIC 0.13 渭 m CMOS process. The results show that the proposed method can reduce the power consumption by 62and decrease the area by 27.55.Compared with the specific amplitude and angle measurement method based on the mode-finding algorithm, the performance of the proposed method is better, and the effectiveness of the proposed method is verified.
【作者單位】： 上海交通大學(xué)高速電子系統(tǒng)設(shè)計與電磁兼容研究教育部重點實驗室;
【基金】：上海市科委項目(13511500900) 高等學(xué)校博士學(xué)科點專項科研基金(20120073130003) 高速電子系統(tǒng)設(shè)計與電磁兼容研究教育部重點實驗室主任基金(2012001) 三星項目資助
【分類號】：TN953
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本文編號：1686116