CAJ | 학술논문

研究了小规模GPS天线阵列中不同单元天线接收信号的幅相一致性及其对阵列接收方向图自适应调零的影响。对正方形排布和三角形排布的GPS天线阵列分别进行了仿真。仿真结果表明，阵元间互耦对单元天线的接收方向图有着明显的影响，三角形排布阵列的单元天线接收信号的幅相一致性要优于正方形排布阵列。然后，进一步研究了7元GPS天线阵的幅相一致性对阵列天线方向图零点形成的影响，给出了阵列接收方向图零陷深度随干扰信号入射方向变化的响应曲线。
연구료소규모GPS천선진렬중불동단원천선접수신호적폭상일치성급기대진렬접수방향도자괄응조령적영향。대정방형배포화삼각형배포적GPS천선진렬분별진행료방진。방진결과표명，진원간호우대단원천선적접수방향도유착명현적영향，삼각형배포진렬적단원천선접수신호적폭상일치성요우우정방형배포진렬。연후，진일보연구료7원GPS천선진적폭상일치성대진렬천선방향도영점형성적영향，급출료진렬접수방향도령함심도수간우신호입사방향변화적향응곡선。
small-scale GPS antenna array and its effect on the adaptive null-steering of received array pattern are in-vestigated.A square-arrangement GPS antenna array and a triangular-arrangement one are simulated re-spectively.The results show that the received patterns of element antennas are interfered by the mutual coupling between the element antennas, and the amplitude and phase imbalance of received signals by different element antennas in a triangular-arrangement antenna array is superior to that in a square-ar-rangement one.Thereafter, the influence of the amplitude and phase imbalance of a 7-elements GPS an-tenna array on the pattern nulling of array is researched further .The response curve of the null depth of received array pattern versus the illuminated direction of interference signal is presented .