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標簽： comparing

上傳時間： 2014-01-24

上傳用戶：zhenyushaw
Multi-Layer optical filter. FDTD Simulation comparing with analytic methods.

Multi-Layer optical filter. FDTD Simulation comparing with analytic methods.

標簽： Multi-Layer Simulation comparing analytic

上傳時間： 2014-07-13

上傳用戶：Ants
comparing JVM web framework

comparing JVM web framework

標簽： comparing framework JVM web

上傳時間： 2013-12-09

上傳用戶：l254587896
ISO7816-3-2006

可以幫助您比較快捷方便的了解7816-3協議-can help you learn fast and convenient comparing 7816 agreement

標簽： 7816 2006 ISO

上傳時間： 2013-07-15

上傳用戶：change0329
基于FPGA+DSP模式的智能相機設計

針對嵌入式機器視覺系統向獨立化、智能化發展的要求，介紹了一種嵌入式視覺系統--智能相機。基于對智能相機體系結構、組成模塊和圖像采集、傳輸和處理技術的分析，對國內外的幾款智能相機進行比較。綜合技術發展現狀，提出基于FPGA+DSP模式的硬件平臺，并提出智能相機的發展方向。分析結果表明，該系統設計可以實現脫離PC運行，完成圖像獲取與分析，并作出相應輸出。 Abstract: This paper introduced an embedded vision system-intelligent camera ，which was for embedded machine vision systems to an independent and intelligent development requirements. Intelligent camera architecture， component modules and image acquisition， transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad， the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design， the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.

標簽： FPGA DSP 模式智能相機

上傳時間： 2013-10-24

上傳用戶：bvdragon
基于碼本映射的語音帶寬擴展算法研究

在現代通信系統中，電話語音的頻帶被限制在300 Hz～4 kHz的范圍內，帶來了語音可懂度和自然度的降低。為了在不增加額外成本的前提下提高語音的可懂度和自然度，進行了電話語音頻帶擴展的研究。提出了一種改進的基于碼本映射的語音帶寬擴展算法：在碼本映射的過程中，使用加權系數來得到映射碼本?？陀^測試結果表明，用此算法得到的寬帶語音的譜失真度比用一般的碼本映射降低至少2%。主觀測試結果表明，用此算法得到的寬帶語音具有更好的可懂度和自然度。 Abstract: In modern communication systems， the bandwidth of telephone speech is limited from 300Hz to 4 kHz， which reduces the intelligibility and naturalness of speech. Telephone speech bandwidth extension is researched to get wideband speech and to improve its intelligibility and naturalness， without increasing extra costs. This paper put forward an improved algorithm of speech bandwidth extension based on codebook mapping. In the process of codebook mapping， weighted coefficients were used to get mapping codebook. Objective tests show that spectral distortion of wideband speech obtained by this algorithm reduces at least 2%， comparing to conditional codebook mapping. Subjective tests show that the wideband speech obtained by this algorithm has better intelligibility and naturalness.

標簽： 映射帶寬擴展語音

上傳時間： 2014-12-29

上傳用戶：15501536189
基于塑料光纖的高壓隔離通信接口設計

通過比較各種隔離數字通信的特點和應用范圍，指出塑料光纖在隔離數字通信中的優勢。使用已經標準化的TOSLINK接口，有利于節省硬件開發成本和簡化設計難度。給出了塑料光纖的硬件驅動電路，說明設計過程中的注意事項，對光收發模塊的電壓特性和頻率特性進行全面試驗，并給出SPI口使用塑料光纖隔離通信的典型應用電路圖。試驗結果表明，該設計可為電力現場、電力電子及儀器儀表的設計提供參考。 Abstract: y comparing characteristics and applications area of various isolated digital communications， this article indicates advantages of plastic optical fiber in isolated digital communications. Using the standardized TOSLINK interface， it helps to control costs and difficulty in hardware development and design. Then it gives the hardware driver circuit of plastic optical fiber module， explains the noticed details in design process， gives results on the basis of the optical transceiver module voltage characteristics and frequency characteristics tests. Finally，it gives typical application circuit of the SPI communication port by using plastic optical fiber isolation .The results show that this design can be referenced for the power field， power electronics and instrumentation design.

標簽： 塑料光纖高壓隔離通信接口設計

上傳時間： 2014-01-10

上傳用戶：gundan
基于FPGA+DSP模式的智能相機設計

針對嵌入式機器視覺系統向獨立化、智能化發展的要求，介紹了一種嵌入式視覺系統--智能相機?；趯χ悄芟鄼C體系結構、組成模塊和圖像采集、傳輸和處理技術的分析，對國內外的幾款智能相機進行比較。綜合技術發展現狀，提出基于FPGA+DSP模式的硬件平臺，并提出智能相機的發展方向。分析結果表明，該系統設計可以實現脫離PC運行，完成圖像獲取與分析，并作出相應輸出。 Abstract: This paper introduced an embedded vision system-intelligent camera ，which was for embedded machine vision systems to an independent and intelligent development requirements. Intelligent camera architecture， component modules and image acquisition， transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad， the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design， the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.

標簽： FPGA DSP 模式智能相機

上傳時間： 2013-11-14

上傳用戶：無聊來刷下
eForth is a small portable Forth design for a wide range of microprocessors. This is the first imple

eForth is a small portable Forth design for a wide range of microprocessors. This is the first implementation for 8086. As machine dependency is consolidated into 31 code words, moving eForth to other CPU s will be much less of a chore comparing to other Forth models.

標簽： microprocessors portable eForth design

上傳時間： 2014-01-25

上傳用戶：從此走出陰霾
This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) comm

This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) communication system. The receiver uses a correlator(mixer-integrator[LPF]) configuration with BER measurements comparing measured and theoretical results. The bandpass and low pass used in the receiver are constructed using z transforms.

標簽： keyed shift amplitude analyzes

上傳時間： 2015-09-26

上傳用戶：liuchee

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comparing

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Multi-Layer optical filter. FDTD Simulation comparing with analytic methods.

comparing JVM web framework

ISO7816-3-2006

基于FPGA+DSP模式的智能相機設計

基于碼本映射的語音帶寬擴展算法研究

基于塑料光纖的高壓隔離通信接口設計

基于FPGA+DSP模式的智能相機設計

eForth is a small portable Forth design for a wide range of microprocessors. This is the first imple

This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) comm