查询词典 GPS

A hardware scheme of a multi-channel GPS signal simulator based on DSP and FPGA is proposed in this paper.The basic framework of hardware system is introduced compendiously,and the structure of software and the program flows based on the hardware are presented in detail.The feasibility of this scheme is verified finally.

立足于GPS卫星信号仿真技术，提出了基于DSP+FPGA的多通道GPS卫星信号仿真器硬件设计方案，概略介绍了硬件系统的基本架构，详细给出了基于此上的软件结构和程序流程，最后通过实验验证了该方案的可行性。

The application and results of GPS local dynamic deformation observation data in diggings subs...

并通过对某沉降区GPS局部地表动态监测数据处理，验证了小波分析在GPS局部地表动态监测分析中的有效性和可行性，得出主要受注浆、采矿、月球引力作用、温度气压及其他一些波影响的结论。

Through studying on GPS OEM board and LED display module,thecollection and display system of GPS's information are designed.

通过对GPSOEM板和LED显示模块的研究，设计了GPS定位信息的采集与显示系统。

Considering the high accuracy and the rapid development of dual frequency GPS receive module, it is also studied in this paper. Being useful for developing GPS intelligent inspection system is expected.

对GPS输出信息的读取方法及经纬度位置、时间信息的处理方法本文也作了研究叙述。

The mathematical models of the delay of the GPS signal in the circumstance are put forward respectively. The computation of orbital arc of the two satellite constellations is based on two body problem and perturbations models. An algorithm based on the IRI model and thin layer model is used to simulate the ionospheric delay of the GPS signal. The error models of observation, multipath, relativity and antenna phase center bias are also researched. Under the consideration of the autocorrelation of the electronical measurements, the autoregressive model of time series is introduced into the noise models.

在信号仿真中，研究了利用二体运动和摄动法计算LEO卫星至GPS卫星星座的几何距离的问题；在信号的误差模型中，研究了电离层时延的IRI2001模型和单层投影模型；讨论了观测误差、多径效应、相对论效应和天线相位中心偏移的误差模型；结合电子测量噪声的具有自相关特性的经验，研究了观测误差的AR模型；结合实测数据分析，讨论了接收机钟差和卫星钟差的误差建模问题。

The data fusion method of GPS single point position matched with railway track is proposed.

在列车运行的区间段，采用基于轨道匹配技术的双车载GPS定位系统与其它传感器组合，该方法利用两套车载GPS定位单元，定位的同时实现列车运行完整性监测。

Effect of concentrations of CS and GPS and pH of the mixture solutions on the gelation of CS/GPS solution were investigated.

研究不同浓度的壳聚糖和甘油磷酸动、混合浓液的PH值等因素对CS/GPS溶液凝胶化性能的影响。

Methods Effect of concentrations of CS and GPS and pH of the mixture solutions on the gelation of CS/GPS solution were investigated.

方法研究不同浓度的壳聚糖和甘油磷酸钠、混合溶液的pH值等因素对CS/GPS溶液凝胶化性能的影响。

Global Positioning System is widely used in geodesy and survey engineering. With the development of GPS, precision becomes more and more important for surveying.

GPS定位技术在测量中的应用日益广泛和深入，随着该技术的不断发展，对GPS测量精度的要求越来越高。

The contents and products of International GPS Service for Geodynamics are recommended.

最后推荐了国际地球动力学GPS服务的内容和产品，并对我国GPS综合服务系统提出了建议。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。