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In embedded operating system design certain question_design, embedded systems
Tuesday, December 1st, 2009 at 11:23 | No commentsCategories: Embedded systemTags: design, embedded systemsShort Content: 1 anything is the embedded operating system Along with computer technology's development, the embedded application already became the computer application domain a important component. The so-called embedded application, is refers to the application system is not by the computer primarily, but makes the computer technology for an application system's constituent inserts to the application system, enables it to have a higher performance. For example: The program controlled switch, the handhold telephone and so on, computer's embedded application domain is ... -
And realizes - en.51rd.net based on the TMS320DM642 network camera’s design
Friday, October 9th, 2009 at 14:44 | No commentsCategories: DSPShort Content: Along with the networking and multimedia technologies' widespread applications, the digital network video frequency obtained the swift development. In network video frequency conference and in network monitor and control domain, traditional simulated video signal conversion digital video signal, and with the aid of carries on the transmission in the existing IP network to become a now big hot spot. Realizes the way from the technology saying that usually is uses the network camera to realize. At present in the market network ... -
Controls many piece of AD9852 based on TMS320C6701 interface circuit’s design
Friday, October 9th, 2009 at 05:51 | No commentsCategories: DSPShort Content: Because direct digit frequency synthesizer (DDS) has the frequency switching time to be short, the frequency resolution is high, the output phase continuously, the programmable control and the entire digitized structure, are advantageous for the integration and so on high performance, in electronic systems and so on radar, correspondence, electronic countermeasure applies is getting more and more widespread. At present, in the phased-array radar and the multi-channel waveform generator and so on some application situation, starts to appear simultaneously uses ... -
The multimedia gateway system center form drafts a telegram the words sound card the design
Thursday, October 8th, 2009 at 20:57 | No commentsCategories: DSPShort Content: At present, hot spot CTI (computer telephone integration) applies has the media gateway, the IP telephone, the IP facsimile and so on. Sometimes the soft exchange is called calls the server or the media gateway controller. The soft exchange's basic concept is (media gateway) separates the call control function from the transmission level. Realizes the basic call control function through server's on software, like call routing, supervisory control, signaling intercommunication. Because controls the call and calls transmits separates, for the ... -
Based on TMS320C6000 series DSP Viterbi translation program optimization design
Thursday, October 8th, 2009 at 03:11 | No commentsCategories: DSPShort Content: Because the convolution code its encoder is simple, the coding gain high as well as has the very strong correction random error ability, obtained the widespread application in the communications system. Based on biggest likelihood criterion's Viterbi algorithm (VA) is in additive under the white gaussian noise (AWGN) channel the performance best convolution code decoding algorithm, is also commonly used one algorithm [1~2]. Generally speaking, realizes decides Viterbi to decode softly may have three kind of plans to ... -
Based on DSP μC/OS-ⅡExcitation system’s research
Wednesday, October 7th, 2009 at 18:18 | No commentsCategories: DSPShort Content: Synchronous motor's magnetic field uses the direct-current excitation, the power factor may in advance, the lag or the specific power factor, in the movement may to the electrical network present reactive power, improves the electrical network power factor, and has the movement stability to be good, the rotational speed does not change and the operating efficiency higher characteristic along with the variation of load, therefore in industry field applications and so on coal mine is widespread. But the synchronous motor ... -
Based on DSP invertor redundant controller’s design
Monday, October 5th, 2009 at 12:57 | No commentsCategories: DSPShort Content: O introduction Switching power supply toward high efficiency, high stability, high power density, low pollution, modular development. Each kind of new analysis situs electric circuit and the technology also obtained the application. Resonant and the soft switch technology's application also causes the mains input density to be able to enhance. The power source controls, the control circuit, the driving circuit, the protection circuit used integrate the module to reduce power source's design difficulty. High speed microprocessor DSP (Digital Signal Processing ... -
Processes the platform design based on the DSP wide band radar multi-laminar flow moisture content section pulse pressure
Thursday, September 17th, 2009 at 22:11 | No commentsCategories: DSPShort Content: 1 introduction As one kind of spotting information's tool, the radar is playing the pivotal role in the modern warfare. In the radar echo signal processing, usually obtains the high distance resolution using the linear frequency modulation signal pulse compress technique. He has solved the radar range effectively and is away from between the resolution the contradiction, may enhance radar's range resolution in the guarantee radar range situation. The digital pulse compression is realizes the radar signal pulse compression ... -
Based on monolithic integrated circuit CPLD multi-channel precise timing control system design
Wednesday, May 27th, 2009 at 04:12 | No commentsCategories: SCMShort Content: 1 introduction In the modern control system the controlled member possibly is complex, scattered, moreover often is parallel, the independent working, but in the whole they are the incident cross-correlation organic combinations. Therefore, control signal's sequential logic requests to be more precise. The CPLD monolithic integrated circuit has provided the technical support for the control system, is composed the multi-computer system by CPLD and the monolithic integrated circuit to have the logical control to be convenient, the succession is precise, ... -
With realizes - en.51rd.net based on the LIN main line’s headlight online diagnosis system design
Wednesday, May 27th, 2009 at 03:59 | No commentsCategories: SCMShort Content: 1 introduction The automobile bussing technique is one of field bus's applications, the initial field bus only uses in the industrial control. The so-called field bus is the application in the production lowest level one kind always the linear analysis situs network. The automobile body directed net needs to solve at present the question is establishes a unification, the low cost low end communication network standard, LIN exists as the CAN auxiliary main line, realizes the automobile body directed net ...
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