CAJ | 학술논문

在介绍雷达领域传统目标跟踪方式基础上，设计了一种基于扩频体制并有效融合“模极值捕获跟踪”和“数字导引”的数字天线跟踪系统。通过精心设计通信帧格式，并采用具有良好正交性的PN码( Walsh)序列“携带”GPS信息用于数字导引，使得系统在具有30 dB高同步捕获增益的前提下同时具有可控的扩频抗干扰增益，在初始捕获和抗干扰通信过程中发挥重要作用。系统采用具有快速算法的自适应滤波技术对数字导引信息进行置信度分析。建模仿真与飞行试验表明，该方法相对传统体制具有更高的灵活性和可靠性。
재개소뢰체영역전통목표근종방식기출상，설계료일충기우확빈체제병유효융합“모겁치포획근종”화“수자도인”적수자천선근종계통。통과정심설계통신정격식，병채용구유량호정교성적PN마( Walsh)서렬“휴대”GPS신식용우수자도인，사득계통재구유30 dB고동보포획증익적전제하동시구유가공적확빈항간우증익，재초시포획화항간우통신과정중발휘중요작용。계통채용구유쾌속산법적자괄응려파기술대수자도인신식진행치신도분석。건모방진여비행시험표명，해방법상대전통체제구유경고적령활성화가고성。
A new digital antenna tracking system which combines both module maximum tracking and digit-al navigation is designed based on introduction of traditional radar antenna target tracking method. The communication frame structure is delicately designed, which ensures both 30 dB high synchronization gain and a reliable wireless transmission. Besides, adaptive filtering with fast calculating method is applied dur-ing digital navigation to ensure the credibility of the information. Simulation and flight tests demonstrate that the proposed two-mode antenna tracking method brings much more flexibility and reliability.