1) slow phase-path-modulation estimation
慢相径调制估计
2) ionospheric slow phase-path modulation
慢相径调制
1.
During sea-state remote sensing by skywave OTH radar,the received sea-surface echoes may be smeared by the ionospheric slow phase-path modulation.
在用天波超视距雷达进行海态遥感时,因电离层慢相径调制污染致使海面回波谱质量下降,直接影响到遥感海态参数估计。
4) multipath estimation delay locked loop
多径估计延迟锁相环
1.
To this end the current multipath estimation delay locked loop(MEDLL) was investigated and improvements were proposed based on the zero-point fixed principle.
为了消除扩频系统中的多径干扰,文章基于稳态零点不变的原则对多径估计延迟锁相环(MEDLL)进行研究及改进。
5) multipath estimation
多径估计
1.
Two methods of multipath elimination technique utilizing narrow correlator and multipath estimation technique were given,the theoretic analysis and simulation results indicate that the methods are efficient in improving the precision of ranging.
给出了采用窄带相关器和多径估计技术减小多径跟踪误差的方法,理论分析和仿真结果验证了采用该方法能够有效提高测距精度。
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