·詳細(xì)說明：使用TI的TMS320VC5402 DSP實(shí)現(xiàn)。DTMF的撥號采用實(shí)驗(yàn)儀的鍵盤輸入，解碼后在液晶屏上顯示- Uses TI TMS320VC5402 DSP to realize. The DTMF digit dialing uses tests the meter the keyboard entry, after the deCoding demonstrated on the l
標(biāo)簽： DTMF 實(shí)驗(yàn)儀 鍵盤 輸入
上傳時間： 2013-07-25
上傳用戶：哇哇哇哇哇
·詳細(xì)說明：ITU-T G.723.1語音編解碼算法源代碼-ITU-T the G.723.1 pronunciation arranges the deCoding to calculate the law origin code 文件列表: G.723.1_c .........\BASOP.C .........\BASOP.H ....
標(biāo)簽： ITU-T 723.1 nbsp 語音編解碼
上傳時間： 2013-07-16
上傳用戶：sz_hjbf
·詳細(xì)說明：ATMEL公司at89c51SND1為主控制器mp3源代碼，包括三星flash U盤的實(shí)現(xiàn)，音樂解碼等，有許多借鑒之處。ATMEL Corporation at89c51SND1 primarily controller mp3 source code, including Tristar flash U plate realization, music deCoding and so
上傳時間： 2013-04-24
上傳用戶：playboys0
·關(guān)于G.729的聲音編解碼程序-This is arranges the deCoding procedure about the G.729 sound.文件列表: G729 ....\ACELP_CA.C ....\BASIC_OP.C ....\BASIC_OP.H ....\BITS.C ....\CODE
上傳時間： 2013-04-24
上傳用戶：jjj0202
·詳細(xì)說明：MPEG2視頻編解碼程序-mpeg2 video frequency arranges the deCoding procedure 文件列表: mpeg2視頻編解碼器 .................\bin .................\...\emu387 .................\...\mpeg2dec.
上傳時間： 2013-06-06
上傳用戶：adamszq
在理論分析循環(huán)碼編碼和譯碼基本原理的基礎(chǔ)上，提出了基于單片機(jī)系統(tǒng)的(24，16)循環(huán)碼軟件實(shí)現(xiàn)編碼、譯碼的方案。仿真結(jié)果表明(24，16)循環(huán)碼能有效地克服來自通訊信道的干擾，保證數(shù)據(jù)通信的可靠及系統(tǒng)的穩(wěn)定，使誤碼率大幅度降低。本論文對(24，16)循環(huán)碼的研究結(jié)果表明，可以有效地降低錯誤概率和提高系統(tǒng)的吞吐量，實(shí)現(xiàn)糾錯僅需要在接收端增加有限的存儲空間和計算復(fù)雜度，具有一定的實(shí)用價值。 Abstract: Based on analyzing the theory of encoding and deCoding of cyclic code， this paper showed the schemes of encoding and deCoding of(24，16)cyclic code by the software and based on microcontroller. Simulation results show that using (24，16) cyclic codes can effectively overcome the interference from communication channel， ensure the reliability and stability of data communication systems， and reduce the bit error rate greatly. The results of this paper show that by using the (24，16) cyclic code， the error rate can be reduced and the system throughput can be improved. Meanwhile， the system only needs to enlarge limited storage space and computation the complexity at the receiving end to realize error correction. Thus the (24，16) cyclic code has a practical value.
標(biāo)簽： 24 16 單片機(jī)系統(tǒng) 循環(huán)碼
上傳時間： 2013-11-09
上傳用戶：gaoliangncepu
針對煤礦井下調(diào)度及緊急救援系統(tǒng)的需求，以DTMF編解碼模塊為核心，設(shè)計了具有自動撥號功能的新型電話系統(tǒng)。該系統(tǒng)利用MT8880對DTMF信號的編解碼功能實(shí)現(xiàn)一鍵撥號和遠(yuǎn)程設(shè)置，通過檢測振鈴和忙音信號，完成自動摘機(jī)和掛機(jī)過程，配合AGC等外圍電路達(dá)到話音清晰流暢的效果。 Abstract: To meet the demand for mine scheduling and emergency rescue system， with using DTMF signal codec as the core， a new telephone system was designed with automatic dialing function. In the system， the DTMF signal encoding and deCoding function of MT8880 was used to achieve one-touch dialing and remote setting. The circuit detects the ringing and busy signal， and then completes automatic off-hook and hangup. With AGC(Automatic Gain Control) and other peripheral circuits， the voice was regulated to a clear and smooth effect.
標(biāo)簽： 8880 MT 撥號電話 系統(tǒng)設(shè)計
上傳時間： 2014-11-18
上傳用戶：ly1994
Using the XGATE for Manchester deCodingTable of Contents 1 Introduction 1.1 XGATE Module in S12X 2 deCoding Algorithm 3 Software Implementation 3.1 Frame Scheme 3.2 Operating Modes and Demo 3.3 Files Summary 3.4 Complete Mode Flowchart 4 Manchester Encoder 4.1 Devices Used 5 Conclusion Appendix A Noise Elements During RF Transmissions in the Manchester deCoding ImplementationA.1 Types of Noise A.2 Effects of Noise A.3 Workaround for Noise Effects
標(biāo)簽： Manchester XGATE 譯碼
上傳時間： 2013-10-15
上傳用戶：wqq123456
This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Appendices have example code for the 16C662 (with comparator) and 16F877 (using the ADC). As the majority of the Digital Signal Processing is done in software, little is required in the way of external signal conditioning. Software techniques are used to model the individual elements of a DTMF Decoder IC.
標(biāo)簽： deCoding DTMF with PIC
上傳時間： 2013-11-21
上傳用戶：zhaoke2005
摘要：本水位監(jiān)測報警器使用5V低壓直流電源（也可以用3節(jié)5號電池代替）就可以對5~15厘米的水位進(jìn)行監(jiān)測，用LED顯示和數(shù)碼管顯示水位，并可以對不再此范圍內(nèi)的水位發(fā)出報警。主要采用CD4066、74LS86、74LS32、CD4511芯片，再加上數(shù)碼管、蜂鳴器、發(fā)光二極管、電阻這些器件組成一個簡單而靈敏的監(jiān)測報警電路，操作簡單，接通電源即可工作。因?yàn)榇蟛糠蛛娐凡捎脭?shù)字電路，所以本水位監(jiān)測報警器還具有耗能低、準(zhǔn)確性高的特點(diǎn)。關(guān)鍵字：譯碼電路 報警電路 監(jiān)測電路 Abstract: The water level alarm monitoring the use of 5 V low-voltage DC power (can also use three batteries replaced on the 5th) will be able to 5 to 15 centimeters of water level monitoring, with LED display and digital display of water level, and this can no longer Within the scope of a water level alarm. Mainly CD4066, 74LS86, 74LS32, CD4511 chips, coupled with digital control, buzzer, light-emitting diode, the resistance of these devices composed of a simple and sensitive monitoring alarm circuits. Because the majority of circuits using digital circuitry, so the water level monitored alarm system also has low energy consumption, high accuracy of the characteristics. Keyword: deCoding circuit alarm circuit monitoring circuit
標(biāo)簽： 水位 監(jiān)測報警 系統(tǒng)原理
上傳時間： 2013-11-05
上傳用戶：王慶才
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