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One kind based on DSP tensity, depth, velocity measurement system
Tuesday, June 16th, 2009 at 03:22 | No commentsCategories: DSPShort Content: Abstract: This system uses in the oil field oil well logging process, receives the tensity, the oil well depth and to the electric cable parameter and so on electric cable going into a well speed surveys. Elaborated the system structure and the principle of work with emphasis. At the same time, to the load cell, sounded the encoder, the system hardware circuit design and the software flow has also made the introduction. This system accuracy is high, the volume is ... -
Realizes - 51RD based on the FPGA digital audio frequency clear channel encoder the Chinese electronic net
Tuesday, November 18th, 2008 at 19:12 | No commentsCategories: EDA/PLDShort Content: Abstract: Introduced the digital audio frequency broadcast (DAB) channel coding's principle and the key technologies, and realize the DAB channel encoder using monolithic FLEX10K100 series FPGA. Key word: Digital audio frequency broadcast (DAB) channel coding FPGA 1 digital audio frequency broadcast (DAB) launching system and channel encoder DAB is broadcasts the system after the amplitude modulation and the FM broadcast third generation. Compares it with the simulation broadcast not only to be possible to provide the ... -
The MPEG-4 real-time encoder realizes - en.51rd.net on ADSP-BF533
Saturday, November 1st, 2008 at 21:09 | No commentsCategories: DSPShort Content: Introduction The MPEG-4 video frequency coding technique may transmit the high grade video data under the small band width, saves the massive storage space, but the code order of complexity is also high, at present abundant must have 3 kinds to realize the plan: Programs on general PC realizes; Realizes as well as the use general DSP chip through the ASIC hardware realizes. Compares with first both, the general DSP chip realizes the plan to have the following superiority: Operation ... -
Based on CPLD convolution code codec encoder-decoder’s design
Wednesday, October 29th, 2008 at 20:17 | No commentsCategories: EDA/PLDShort Content: The abstract convolution code is one performance fine error control coding. This article elaborated the convolution code codec encoder-decoder's key job principle, in the MAX PLUS2 software platform, gave the use complex programmable logic component design (2,1,6) to convolute the code codec encoder-decoder electric circuit, and has carried on the translation and the profile simulation. After the synthesis, downloads to complex programmable logical component EPM7128SLC84-15, the test result indicated that has achieved the anticipated design requirements. Key word convolution ... -
Realizes many machine and the mouth line correspondence with MC145026/27
Monday, October 27th, 2008 at 09:23 | No commentsCategories: Communication NetworksShort Content: Abstract: Introduced one kind arranges decoding chip MC145026/27 with the three states of matter to realize and realizes the method based on and the mouth multi-equipment and lines communications system's composition principle, has given between many miniature machine's wireless communication question solution and so on, elaborated system's main assembly and the means of communication.Key word: Parallel interface wireless communication encoder decoder MC145026/27 1 introduction In domains and so on telemetering, remote control, often uses the microcomputer and the monolithic integrated ... -
With realizes - en.51rd.net based on the FPGA LDPC encoder design
Tuesday, September 16th, 2008 at 15:36 | No commentsCategories: EDA/PLDShort Content: Introduction The low density parity check (Low Density Parity Check Code, LDPC) the code is one kind has the sparse check matrix linear grouping code, not only has approaches the good performance which Shannon limits, moreover the decoding order of complexity is low, the structure is flexible, was the recent years channel coding domain research hot spot, at present has widely applied in domains and so on deep space correspondence, fiber optic communications, satellite digital video and audio frequency broadcast. ... -
Based on FPGA MPEG-4 codec encoder-decoder - 51RD Chinese electronic net
Saturday, September 6th, 2008 at 02:02 | No commentsCategories: EDA/PLDShort Content: Whether you once did want to use the advanced video compression technology in yours FPGA design, actually discovered that realizes extremely complex? Now you do not need into a video frequency expert to be able to use the video compression in yours system. The match spirit thinks of the MPEG-4 encoder/decoder endorse which promotes newly to help you to meet the video compression need. The video frequency and the multimedia systems become day by day complex, therefore whether ...
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