| 1. | Modeling and calculating of multipath effect of low angle tracking for a monopulse radar 某精测雷达航路异常值处理方法改进研究 |
| 2. | In the radar elevation coordinate , the multipath effects are more severe , which cause periodic peak error in the target height measurement 在雷达俯仰角(目标高度)方向上多径误差的影响尤为严重,使得目标高度的测量误差表现为周期性的尖峰误差。 |
| 3. | When low elevation targets arc tracked using the monopulse radar , the multipath effects including the specular reflect and diffuse reflect degrade severely the tracking performance 雷达跟踪海面低空目标时,由镜面反射和漫反射引起的多径误差严重影响雷达的跟踪性能。 |
| 4. | In this dissertation , the theory and realiztion of gps based attitude determination technique are studied , multipath effects on gps observables and carrier phase multipath mitigation are also analyzed 本文研究了gps实时姿态测量技术的理论及实现,并分析了多径效应对gps观测量的影响及载波相位多径误差抑制。 |
| 5. | In the field of underwater acoustic communications , the intersymbol interference caused by multipath effects will make the reliability and the rate of the propagation of underwater acoustic signals 在水声数字通信系统中,声波传播的多途效应会引起严重的码间干扰,使水下数据传输的可靠性和数据传输速率都大大的降低。 |
| 6. | It includes : target detection under sea - clutter and multipath propagation , multipath effects on parameters measure of target , analysis and comparsion of all multipath reduction techniques " performance 它包括海杂波背景和多径传播影响下的目标检测技术研究;多径传播对目标参数测量的影响;各种多径消除技术的性能分析与比较。 |
| 7. | Due to multipath effect , multiple access interference ( mai ) , near - far effect , and mainly the non - li ne - of - sight ( nlos ) propagation , the errors in the estimated location parameters and position location occur 在cdma蜂窝网的定位中,引起定位参数估计误差与定位误差的因素有非视距传播效应、多径传播效应、多址干扰及远近效应。 |
| 8. | Direct sequence spread spectrum ( dsss ) communication systems have the characteristics of wide spectrum , low working signal - to - noise ratio ( snr ) , anti - interference , anti - multipath effect , capability of cdma , lpi and lpd 直接序列扩频(英文简称dsss )通信具有频谱宽、工作信噪比低、抗干扰和抗多径效应能力强、可实现码分多址、低截获和低检测概率等特点。 |
| 9. | The land clutter is useless signals for target detection caused by land terrain . the multipath effect is some kind of interference which is caused by wave reflection on terrain . the diffraction effect is the phenomenon of wave propagation into shadow region 地杂波是由地面散射引起的对目标探测无用的信号;多路径是由电磁波在地面反射所引起的干涉;衍射则是电波绕射传播到遮蔽区的现象。 |
| 10. | With regard to the multipath effect which is a more complicated problem in pseudolite application , a project in which pseudolites is rounding on a flat is brought forward to mitigation the multipath effect this paper , and it have been making some analysis and simulations on this project 对目前伪卫星技术应用中较为棘手的多径问题,本文提出一种伪卫星转动的方案来减轻多径干扰,并进行了性能分析和仿真。 |