CAJ | 학술논문

介绍了自适应波束形成技术的基本原理，对具体算法进行了数学推导。根据波束形成技术的特点，提出一种将其应用于 GNSS 抗干扰系统的解决方案。以七阵元均匀圆阵为例，推导出期望信号的阵列响应公式，给出接收信号协方差矩阵的求解方法，从而为将自适应波束形成技术应用于 GNSS 抗干扰系统铺平了道路。仿真显示利用该方法能够在卫星信号来向保持一定增益的同时，在干扰来向形成深度零陷，从而达到较好的 GNSS 抗干扰效果。
개소료자괄응파속형성기술적기본원리，대구체산법진행료수학추도。근거파속형성기술적특점，제출일충장기응용우 GNSS 항간우계통적해결방안。이칠진원균균원진위례，추도출기망신호적진렬향응공식，급출접수신호협방차구진적구해방법，종이위장자괄응파속형성기술응용우 GNSS 항간우계통포평료도로。방진현시이용해방법능구재위성신호래향보지일정증익적동시，재간우래향형성심도령함，종이체도교호적 GNSS 항간우효과。
This paper introduces the principle of adaptive beam-forming technique,and presents a mathematical deduction to the algorithm in detail.A Global Navigation Satellite System (GNSS) anti-jamming method based on the adaptive beam-forming technique is proposed.Taking the circular antenna array with seven units as an example,the response of array is deduced,and a method for solving covariance matrix of the received signal is given.Therefore,the adaptive beam-forming technique can be used in the anti -jamming system of GNSS. The results of the simulation show that :this method keeps a gain with certain level in the direction of satellite signal and forms deep null in the direction of jamming ,thus can have a good anti -jamming effect.