time for positioning

Of reliable positioning structure and special high strength long-life light source, no need of maintenance, to ensure that the equipment can work stably for a long time.

可靠的定位结构及特制高强度长寿命光源，无需维护，确保仪器能长时间稳定工作。

Accurate time delay estimation of overlapping fading multipath components is vital for many systems, particularly for positioning technologies.

多径分量重叠衰落下的精确时延估计对很多系统而言都非常重要，对于定位技术更是如此。

AM-FM Interference Mitigation for Global Positioning System Using Time Frequency Analysis and Synthesis

基于时频分析和综合的GPS抗AM-FM干扰技术

In chapter 3, analyzes and researchs GPS work principle and its mainly positioning technique, then based on combining characteristic of dredger's dredging positioning, real time differential positioning has been applied for dredger's position by utilizing RBN-DGPS.

第三章分析研究GPS定位原理及其主要定位技术，并结合挖泥船施工定位的特点，利用RBN&DGPS系统对挖泥船进行实时差分定位。

The simulation results aimed at the practical running data show that the correct rate of the new algorithm is no less than 95%, and the matching time for the individual positioning point is less than 0.01 ms.

对实际跑车数据的仿真结果表明：该算法的匹配正确率不低于95%，单点匹配时间不超过0.01ms。

Three dimensional Constant Real time Automatic System for bridge displacement monitoring was described by using Global Positioning System Real Time Kinematic ( GPS RTK) technology.

阐述了一种利用全球定位卫星载波实时相位差分（GPS RTK）技术的桥梁三维位移长期实时自动监测系统。

The space scale of GPS data vary from region to the global, and its time scale vary from seconds to years. Its precision of relative positioning for long baseline can reach the magnitude of 10-9.

GPS资料的空间尺度从区域到全球，时间尺度从数秒、数小时到数十年，长基线相对定位精度可达10-9的量级。