commpass gradient mask

Comparison of GPS and compass in the application of forestry;

GPS与罗盘测量在林业调查设计中的应用比较

The positioning and precision analysis of compass traverse.;

罗盘导线定位及其精度分析

A dead reckoning system (DRS) based on MCU was expatiated, which was composed of compass, rate gyroscope and odometer and its essential theory.

阐述了一种基于单片机的由速率陀螺、磁罗盘和里程仪组成的新型航迹推算系统及其工作原理 ,在此基础上设计了多级滤波组合方式GPS(GlobalPo sitioningSystem) /DRS(DeadReckoningSystem)汽车定位导航系统 ,并通过地图匹配进一步提高定位精度 ,同时利用GSM(GlobalSystemforMobilecommunications)进行定位数据的无线传输 。

The Design of the ADF Antenna Simulator;

罗盘（ADF）天线模仿仪的设计

In order to satisfy the requirement of integrated communication, navigation and identification system(ICNI), this paper proposes a design scheme of IF digitized radio compass module based on SDR, and discusses the design and realization method of the key technologies in this module, including the Orthogonal Demodulation, ADF Bearing Calcu- lation and ADF Lock-losing Detection.

为了适应综合化通信导航识别系统(ICNI)的需求,论文提出基于软件无线电理念的ADF中频数字化信号处理模块的设计方案,给出了该方案中的关键技术和数字处理算法,主要包括:正交解调、罗盘方位解算、罗盘失锁检测的算法设计,并给出了通信接口的设计方法。