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Design of serial communication system between FPGA and GPS-OEM Board [Date:] Source: Electronic Components application Author: Chen shilei, Liu Guixi, to Guohua [Font:Large Medium Small] 　 0 Introduction Global Positioning System (GPS) is the second generation of satellite navigation system in the United States. It is developed on the basis of the satellite navigation system of the Mer

LBS has been widely used in mobile devices and browsers. Based on APIs, it can easily implement address location-related applications, however, I still don't know how to obtain the user's location information behind these Apis. Today I spent some time studying it: There are two ways to obtain location information: GPS and Wi-Fi. 1.GPS The basic principle of GPS is to measure the distance between the satellite at a known position and the receiver of th

3 DVB-C of DVB standard wired Transmission System3.1 composition of DVB standard wired Transmission System Figure Figure 3 Composition of DVB standard wired Transmission System The composition of the DVB standard wired transmission system is as follows: 　　　　 A. Signal Source (1) Output of local broadcasting devices, such as video recorders, DVDs/VCD players, and video servers; (2) A variety of TV signals, such as satellite TV signals, cable

gpsspeed = location. getspeed (); // speed Long gpstime = location. gettime (); // time Date = new date (gpstime ); Dateformat df = new simpledateformat ("yyyy-mm-dd hh: mm: SS "); Float gpsalt = (float) location. getaltitude (); // altitude Latitudeview. settext ("" + latitude ); Longitudeview. settext ("" + longpolling ); Speedview. settext ("" + gpsspeed ); Timeview. settext ("" + DF. Format (date )); Altitudeview. settext ("" + gpsalt ); Bearingview. settext ("" + bear ); } Els

GPS Data Format GPRS (the minimum GPS data format is recommended) $GPRMC, 1) standard positioning Time (UTC time) Format: time, minute, second (hhmmss. Sss ). 2) Positioning status, A = data available, V = data unavailable. 3) latitude, in the format of ddmm. Mmmm ). 4) latitude differentiation: Northern Hemisphere (n) or Southern Hemisphere (s ). 5) longitude, in the format of "degree score. Score. 6) The longitude is distinguished, East (e) hemisphere or West (w) hemisphere. 7) relative displ

I used to look forward to the Chinese version of Google Maps in "Application Development and Analysis of Google Maps ".The birth of APIS is expected to create Google map applications for thousands of third-party websites. Today, I accidentally discovered that the Chinese map API has already appeared. In fact, unfortunately, today I found that a Google Maps satellite map application developed by myself cannot display

Someone asked me the day before yesterday. I don't know yet. I saw it on the Forum and added it to my favorites. Haha Scale and resolution of Remote Sensing Images The image resolution rate is an important indicator for determining the image accuracy. The image accuracy must meet the image recognition capability and accuracy requirements of the corresponding scale map update, and the map update cost must also be taken into account. Redundant resolutions increase the cost of purchasing weixing im

In the previous article, "Introduction to various wireless WLAN Access Technologies", we introduced the overview of wireless WLAN Access Technologies and six Wireless Access Technologies, below we will complete up other types of wireless WLAN access technology. We are familiar with these technologies. 6. Wireless WLAN Access Technology-DBS satellite access technology DBS is also called the digital live broadcasting

Recently in the commissioning of the GPS Beidou dual mode, has been debugging now, the following is a few words involved.GPS:GPS is the abbreviation for the English Global Positioning System (GPS). GPS started in 1958 with a U.S. military project, which was put into use in 1964. In the 1970s, the United States Armed Forces jointly developed a new generation of satellite positioning system GPS. The main objective is to provide real-time, 24x7 and globa

Title Link: http://poj.org/problem?id=2349DescriptionThe Department of National Defence (DND) wishes to connect several northern outposts by a wireless network. Different communication technologies is to being used in establishing the Network:every outpost would have a radio trans Ceiver and some outposts would in addition has a satellite channel.Any-outposts with a satellite channel can communicate via the

method in the class that implements the Ixposedhookloadpackage interface Handleloadpackage. But here we have to do one thing first, and that is the knowledge of positioning systems in Android, and we know that there are many ways in which mobile phones are positioned: First, satellite positioning GPS (Global Positioning System) that is, is the United States to establish a satellite navigation positioning

http://www.huangyibiao.com/archives/860 Want to learn about live, if not set up a server, how to learn the client-related technical knowledge. The author has successfully built the NGINX+RTMP server. If you do not know how to build the server, then this article contains the RTMP server address can be used in learning, for testing. HLS Live address http://live.hkstv.hk.lxdns.com/live/hks/playlist.m3u8 Hong Kong satellite TV http://221.120.177.59/hls/ I

from several kilometers to dozens of kilometers and can overlap with each other. Because NMDS/LMDS features higher bandwidth and two-way data transmission, it can provide a variety of broadband interactive data and multimedia services to overcome the bottleneck of the traditional local loop, it can meet users' increasing demands for high-speed data and image communication. Therefore, it is a powerful tool to solve the communication network access problem. 6. Wireless LAN Access Technology DBS

GPS Data Format I. GGA Global Positioning System Fix Data. Time, position and fix related data for a GPS aggreger GPS positioning data, GPS receiver time, location, and location description $ -- GGA,Hhmmss. SS,Llll. ll,A,Yyyyy. yy,A,X,Xx,X. x,X. x,M,X. x,M,X. x,XXXX * hh 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1. UTC time 2. Latitude 3. N or S (north or south latitude) 4. Longitude 5. E or W (eastern longitude or Western longitude) 6. Satellite quality fa

First of all, the acquisition of GPS data positioning methods are: GPS satellite positioning, WiFi location, base station positioning, AGPS positioning. The application of GPs is regarded as the core in the software of lbs industry. Several positioning ways to explain (1)Android GPS: the need for GPS hardware support, direct and satellite interaction to obtain the current latitude and longitude, this way re

Wireless access network According to the advent of the 70 generation of the first generation of systems, that is, a point to the multi-point microwave system, the second generation of the 80 system, that is based on the simulation of cellular systems, with the third generation of the 90 system, that is, based on the digital cellular system. It should be noted that these three-generation systems belong to narrowband wireless access. Therefore, the broadband wireless access network can be used as

Satellite positioning System-gps/glonass/Beidou:About GPS, GLONASS, Beidou, Galileo system of popular Science please Google itself.GPS is the most widely used global positioning network and is standard for almost all smartphones. In a few years, Russia's GLONASS positioning function also gradually joined the smart phone chip, and GPs to form a dual positioning system, positioning speed greatly improved. China's self-developed Beidou navigation system,

1 IntroductionAs a data communication support network, DDN is mainly used to provide users with high-speed and high-quality data transmission channels and provide bridges for their network interconnection. With the economic development of Jiuquan City, China Telecom's DDN has been expanded to the region, which has led to rapid development of data transmission services in the region, including ICBC's data transmission services.In order to improve business processing capabilities, Jiuquan Industri

or in the office, "McGinnis added. "The expectation of People's expansion is partly attributed to airlines ." JetBlue recently announced that more than 150 of its aircraft are equipped with satellite-based Wi-Fi, and other aircraft are planned to be installed next year. Joining hands with ViaSat, a satellite broadband and wireless service company, JetBlue said its broadband network would "be close to the l

Introduction: In our application to provide users with location services, often want to provide users with accurate point of location services, which requires the user to cooperate. We must first detect the user's mobile phone's GPS is currently open, if not open, pop-up dialog box prompt. If users do not cooperate with us, we can only use the base station positioning method. If our application must be opened by the user to use the GPS, then the rogue point of action is to force users to open th