0x00 PrefaceGNSS is an abbreviation for the Global Navigation satellite system. Chinese is called: Global satellite navigation system, global navigation satellite system.GNSS refers to all satellite navigation systems, including global, regional and enhanced, such as the U.S. GPS, Russian GLONASS, European Galileo, China's Beidou satellite navigation system, and related enhancement systems, such as the United States of WAAS (wide area enhancement system), Europe's EGNOS (European static navigati
Geek DIY: cheap TV rod play GNSS-SDR, real-time GPS Positioning
0 × 00 Preface
FreeBufPopular Science:
GPS is short for Global Navigation Satellite System. Chinese name: global satellite navigation system and global navigation satellite system.
GPS refers to all satellite navigation systems, including global, regional, and enhanced systems, such as GPS in the United States, Glonass in Russia, Galileo in Europe, and Beidou satellite navigation system
hardware assembly and connected to the computer, do not install the drive from the CD, non-XP system (Vista and above) download driver Http://sourceforge.net/projects/libwdi/files/zadig/zadig_ V2.0.1.160.7z/downloadXP Download driver: Http://sourceforge.net/projects/libwdi/files/zadig/zadig_xp_v2.0.1.160.7z/downloadThe default installation is sufficient.2, in http://rtl1090.web99.de download RTL1090 software Download point to the software, that is, Rtl1090.zip, and decompression.3, download Htt
[Abstract]: This paper introduces the DVB-based Data Broadcast System (IP over DVB) developed by the Blue topology company for cable TV networks, which focuses on the system structure, the front-end system structure and implementation, and the design and implementation of the backend data receiving card.
Key parts of the system: Front-End Server software, multi-protocol wrappers, and data receiving cards ar
This article was written by Taylor Killian on his blog in August 13. He contrasted the three parity SDR platforms, thinking that the three products would be the most popular SDR platform of the coming year. I think this article is very valuable for reference, a simple translation of a turn around.The original is here:Http://www.taylorkillian.com/2013/08/sdr-showd
0x00 written at the beginningRecently, the discovery of crazy Danish hacker on YouTube released a very good tutorial video: Use SDR sniffing visits to listen to GSM network traffic (GSM sniffing Teaser–software Defined Radio Series). This tutorial is illustrated in detail from the installation of a TV stick to scanning, the use of sniffer tools, and the capture and decryption of GSM traffic packets:As a porter, here will be divided into two or three p
Based on the LINUX multimedia applications developed by all the DVB devices of DVBWorld, the applications of Digital TVs on LINUXTV-Linux general technology-Linux technology and application information are as follows. Linux DVB is a strange and familiar field for Chinese computer enthusiasts. If you love Linux, take actions and work together !!
I am a LINUXTV multimedia application developed based on all t
1. SDR descriptionSpring Data Redis (SDR), a set of simplified access to Redis APIs provided by Springframework, is another layer of encapsulation for Jedis.The SDR integrates the four open-source Redis Connector of Jedis,jredis,srp,lettuce, all of which are open source Java libraries for Redis. Among them, Jredis and SRP start from spring-data-redis1.7, it is no
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. Sig
Tags: sampling parameters Enter ENC Compare Direct circuit board enable AnnHardware PreparationAntenna: A dangling long-distance antenna, if only temporary use, directly with the ordinary 0.75 square PVC multi-stranded soft wire can be.Baron: 9:1 BarronReceiver: Q Channel adds RTL-SDR receiver for low frequency inputand the corresponding connection cable.ReceiverThe front and back of the circuit board, the connecting head is SMA, the outer screw inner
easy to click on the wrong spot: Errors caused by the spring version too low"Environment Parameters"Redis version: Redis-2.4.5-win32-win64Spring Original version: 4.1.7.RELEASESpring Modified version: 4.2.6.RELEASE"Description of the barrier"Question:nosuchmethoderrorInvocation of Init method failed; Nested exception is java.lang.NoSuchMethodError:Org.springframework.core.serializer.support.deserializingconverter."Cause analysis"Cause: Spring version is too lowIn the
Abstract: combined with the psi/Si information table in a TS stream of DVB-C Cable Digital TV, this paper analyzes the PSI Information of MPEG-2 and the various tables in SI information of DVB, this gives you a clearer understanding of the functions and functions of each table.
Key words: Digital TV; TS stream; PSI information; SI information; Electronic Program Guide EPG
1. Introduction
In digital TV, all
make them covet, but for the first input re-output cyclical so that they have concerns, so weigh, have to take one side to continue to follow up IPTV, in the developed regions gradually increased, in the region, relying on local Unicom's enthusiasm, Try out business exploration with OTT external power. Try to find a balance between input and earnings, but time is often lost in the search for repetition.
China Mobile
For mobile, while the use of resources to actively acquire fixed-network lice
How to quickly find the programs required by users in many digital TV programs, it is a problem to be solved in digital TV applications. In DVB generally, electronic program guides are used in receivers ( EPG ) this tool allows you to quickly find programs and generate EPG the data source is DVB business information in the code stream Si information.
on a digital TV, all the video, audio, text,
Objective: To set up an SDR server, through the terminal can connect to the Server to operate on its SDR, to achieve remote operation of the station, so as not to be affected by the antenna, the antenna hanging in the sun the most non-partner place, find a cool to hold the computer listening to the radio.
Client scenario 1:RTL-SDR + gqrx/
2.4 MPEG-2 code stream multiplexing and Business Information
Audio and video and digital signal first through the MPEG-2 encoder data compression, through program multiplexing to form the basic code stream (es), the basic code stream after packaging to form a packet header of the basic code stream (PES ). PES streams representing different audio and video signals are sent to the DTs for system reuse. The reused code streams are called transmission streams (TS). transmission streams contain dif
Before using mesh animate to play a well-prepared plant swing animation, you must use the dynamic vertex buffer. Lock/unlock update is required for each frame. When playing the first 100 animation objects, the FPS on a machine is 9.
Then, we
This project uses Raspberry Pi with ultra-low-cost software radio (SDR) hardware to receive tracking information sent from an airborne S-mode transponder outside millions of miles. The Raspberry Pi is equipped with a smart 3.5-inch TFT display to provide a convenient overview of aircraft activities.
HardwareThe rtl2832u-based small SDR receiver (124-5461) is designed for
Principle of MPEG-2 SystemChapter 1 MPEG-2 OverviewWhat is MPEG and MPEG-2?MPEG is short for Moving Picture Experts Group. MPEG-2 is a digital video compression specification designed by MPEG and ISO organizations. It is mainly used on DVDs and DVB. The current standard document is iso13818.What is DVB?DVB, short for Digtal video broadcast, is a digital TV standa
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