欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为实现超紧INS／GPS组合接收机跟踪高动态、微弱GPS信号，分析了超紧组合的基本结构，并根据载波环路噪声与带宽的关系，研究并设计了一种INS辅助GPS接收机载波和码跟踪环路的具体实现方案。整个环路进行了仿真。结果表明：载噪比为45dB／Hz时，载波和码环带宽可降至2，0．03Hz；而在满足带宽大于或等于20，0．5Hz的条件下，环路能在加速度为5gn、加加速度为＋20gn／s的高动态环境下实时有效地跟踪载噪比为30dB／Hz的弱GPS信号。
英文摘要：
In order to realize ultra-tight INS-GPS integration receiver tracking high dynamic and weak GPS signal,the architecture of the ultra-tight INS-GPS integration system is discussed. According to the relation between noise and bandwidth of carrier wave loop, a specific realization scheme for carrier wave of INS-aided GPS receiver and code tracking loop is studied and designed. The overall loop is simulated. The computer test results validate that the carrier wave and bandwidth of code loops can be down to 2,0.03 Hz. When the carrier to noise ratio is 45 dB/Hz ;when the bandwidth are above or equal to 20,0.5 Hz, the loops can effectively track the weak signal of 30 dB/Hz in high dynamic scene of acceleration 5gn and jerk ±20 gn/s.
同期刊论文项目
同项目期刊论文
Novel Hysteretic Noisy Chaotic Neural Network for Broadcast Scheduling Problems in Packet Radio Netw
期刊信息
位置：