analog and digital circuit 中文意思是什麼
analog and digital circuit
解釋
模擬數字電路-
The hardware mainly consists of three parts : signal pre - amplifying and conditioning circuit is used to amplifying the microseismic signals which have detected, signal processing and target identifying circuit based on singlechip is used to convert the analog signals which have been amplified to digital signals and go through signal analysis, processing to identify the moving target, the sending and receiving setting is used to send the identifying result to the decision - making and he can take relevant action according to the result
硬體主要由三部分組成：信號調理電路對檢測到的微弱地震動信號進行放大；基於單片機的信號分析與目標識別電路將放大后的模擬信號進行a d轉換，進一步將得出的數字信號分析、處理，實現目標識別；識別結果發射與接收裝置將識別結果發射給決策者，由其根據接收結果採取相應的措施。 -
The dac consists of analog circuit blocks and digital circuit blocks, so it is a mixed signal circuit. because the digital part is simple comparatively, we use the same method as analog part to design it
採用模塊化的設計方式實現數據快速轉換，主要包括電流源矩陣模塊、鎖存模塊、譯碼模塊、帶隙基準電壓源模塊及電流開關網路等電路模塊。 -
Tms320vc549 is used as the core circuit, tle2064 amplifies the signals, tlc320ac02 converts the analog signal to the digital signal ( a / d ), tms320vc549 trains and recognizes the speech signals, and the circuit of lcd displays the result
整個系統以tms320vc549為核心電路進行設計， tle2064進行放大， tlc320ac02進行a d轉換， tmcs30vc549進行訓練和識別語音信號，由lcd顯示結果。 -
The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence
主迴路採用由18個晶閘管組成的三相零式電路，並輔以晶閘管的保護電路，通過控制可以得到低頻正弦波的電壓（電流）輸出；控制迴路主要以87c196kccpu為核心，其外圍電路包括同步電路，脈沖拓寬電路，功率放大驅動電路等，完成了數字觸發、數字調節、模數轉換等功能；進線電源變壓器具有變壓和隔離作用；環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。 -
Great progress of microprocessor and peripheral circuit causes distinct improvements in digital control techniques. then, digital control technique will gradually substitute analog control technique for controlling power electronic system
微處理器及其外圍電路的發展，使得數字控制技術所存在的一些問題不斷得到改善，並逐漸取代模擬控制技術實現系統的控制功能。 -
The mixed - signal flow should realize the communication between the digital circuit and analog one. it includes mixed - signal simulation, integration of the layout of digital and analog circuit, parasitic extraction and post - simulation
數模混合的設計流程要實現數模電路之間的信號通訊，它的主要流程包括：數字模擬電路的混合模擬，數字模擬電路版圖的整合和數字模擬電路提取寄生參數后的模擬。 -
Thirdly, the range switch circuit and filter circuit are designed in the analog input channel. to realize the safe high speed acquisition, the interface circuits are separated from the function circuits, and the isolation power with high performance and digital isolator is used to restrain the common mode disturb and noise of the input
3 .模擬輸入通道設計有量程切換電路和濾波電路，並且採用了屏蔽、浮置技術和磁耦隔離技術，使用了高性能的隔離電源和磁電耦合器，有效地抑制了輸入信號的共模干擾和噪聲，實現了安全、高速的數據採集。 -
The prerequisite of the course is physics 、 circuit analysis 、 analog circuit 、 digital circuit 、 medical sensor and medical instrument
本課程的先修課程主要普通物理、電路分析基礎、模擬電子技術和數字電子技術、醫學傳感器、醫學儀器原理等。 -
Finally, according to the mosfet ' s parameter degradation due to hot - carrier effects and different application environment of mos devices on analog and digital circuits, the circuit structures for hot - carrier immunity are proposed for digital applications by adding a schottky diode in series with the drain of the nmosfet suffered heavily from hot - carrier degradation.,
即在受熱載流子退化效應較嚴重的n mosfet漏極串聯一肖特基二極體的新型cmos數字電路結構和串聯一工作于線性區的常開n mosfet的mos模擬電路結構。經spice及電路可靠性模擬軟體bert2 -
Secondly, basing on single channel if sr receiver mathematic model, this thesis has designed if sr receiver subsystem and brought forward its design project and system circuit principle diagram, and explained the system working principle. furthermore, this thesis introduces the working principles and respective applications of wideband high - speed adc ad6640, ddc ad6620 and high - speed dsp tms320c6713 according with the if sr receiver subsystem high - speed analog digital conversion department, digital down conversion department and high speed digital signal processing department. thirdly, the thesis emphatically demonstrates the software realization department of the if sr receiver subsystem, which including ad6620 ' s inner parameter software setup, tms320c6713 data transmission and processing and the quadrant demodulation algorithm program realization
其次，基於單通道中頻軟體無線電接收機數學模型，本文設計了中頻（ if ， intermediatefrequency ）軟體無線電接收機子系統，給出了中頻軟體無線電接收機子系統的設計方案和系統電路原理圖，說明了系統工作原理，並分別對應系統中的高速模數轉換部分、數字下變頻部分、基帶數字碩士學位論文軟體無線電理論研究及中頻軟體無線電接收機子系統設計信號處理部分，介紹了高速adcad664o ，數字下變頻器（ ddc ， digitaldownconverter ） ad6620 ，高速數字信號處理器（ dsp ， digitalsignalproeessor ） tms320c6713的工作原理，以及它們在中頻軟體無線電接收機子系統中的應用。 -
In the paper, the design of the real - time test system for crystal parameters is presented. the signal generator of sweep frequency based on dds device ad9852, the signal measuring circuit based on gain and phase detector ad8302, and the real - time control and deal circuit based on tms320vc5416 and the design of high - speed printed digital & analog circuit board are discussed in details
本文闡述了晶振實時測量系統的設計，介紹了以dds晶元ad9852為核心的掃頻信號源電路，以增益相位檢測器ad8302為核心的信號檢測電路，以dsp晶元tms320vc5416為核心的實時控制與運算電路，以及高速數模混合電路板的設計方法。 -
The commonly used designing flow and basic technology of integrated circuit, such as the cell layout, synthesis, simulation, fpga verification, automatic layout & routing of the digital circuit, are introduced and analyzed in detail. the layout designing and simulation of the analog circuit are also introduced and analyzed in detail
論文對集成電路常用設計流程和基本技術作了詳細介紹和分析，其中包括數字電路的基本單元版圖、綜合、模擬、 fpga驗證和自動布局布線，也包括常用模擬電路的版圖設計和模擬。 -
For the purpose of testing the function of extended ports, digital - to - analog conversion and analog - to - digital conversion, an auxiliary experiment board is made, it includes analog signal outputs, switch signal outputs, led circuit, eight - segment nixie tubes and a digital - to - analog conversion circuit
為了驗證擴展口、 a d轉換和d a功能，還自己製作一個包括8路模擬量輸入、開關量輸入、 8路led 、 4個數碼管和d a轉換電路輔助電路板。 -
Responsible for controls design for customer automotive test equipment, including high voltage control panel design and layout, analog and digital circuit design, and communications under the guidance of senior engineers
在高級工程師的指導下，負責對定製的汽車試測設備進行控制設計，包括高和低電壓的控制板進行設計和布局，模擬式和數字電路設計和通信。 -
At the time of researching the principle of parallel - to - serial convert and digital - to - analog convert, this article analyzes characteristics of the high speed circuit, the problem of the circuit and the resolvent of the problem
本文在研究高速數據復接與d a轉換基本原理的同時，分析了高速電路的特點、存在的問題以及解決措施。 -
This paper give some important definition of parameter of high - speed analog - digital circuit dynamic performance and do some research of a / d testing theory via the time - domain and frequency - domain on the basis of performance testing method of the a / d device
本文在總結國內外已有高速模數轉換器件性能測試方法的基礎上給出衡量高速模數轉換電路的動態性能參數的定義，對時域、頻域兩類測試方法進行了理論上的討論。 -
The mellin rapid compute method is given. the analog or analog - digital mixed versus digital circuit used to perform wt has been discussed. also discussed the methods on how to realize the cwt both in time - domain and frequency - domain
第二章討論了小波變換的定義及分類，回顧了小波變換的思想，給出了小波變換的主要特點及幾種常用的基本小波。 -
In view of numerous digital and analog signals need to be processed, and the difficulty of real - time processing of multi channel 400 hz ac signal, vhdl ( vhsic hardware description language ) is applied to design the digital circuit, which is successfully realized in field programmable gates array ic - xc2s100
針對i o模塊中需要處理的數字量和模擬量較多的事實，以及多路400hz信號的實時處理較為繁重的現狀，作者採用了現場可編程門陣列（ fpga ）加以解決。 -
The thesis includes the design of hard circuit, pcb ( printed circuit board ), driver and application soft involving a / d board and d / a board. the detailed functional modules consist of multiplex signals select module 、 analog digital conversion module 、 digital analog conversion module 、 pci protocol conversion module 、 driver and magnifying module 、 control logic 、 clock circuit and configuration circuit. the importance of the thesis is a / d board
本課題包括硬體電路、印刷電路板（ pcb ） 、驅動程序和應用軟體的設計，涉及a / d板和d / a板兩大塊部分，具體的功能模塊包括多路信號選擇模塊、模數轉換模塊、數模轉換模塊、 pci協議轉換模塊、驅動放大模塊、控制邏輯、時鐘電路和配置電路，其中重點是a / d板部分。 -
The characteristics of vfc - type analog to digital converter ( atd ) and successive approximation analog to digital converter are analyzed. the paper disscuss the advantage of mcu integrated adc, select the data acquisition system of the design. 4. this paper utilizes the monolithic silicon integrated circuit performs switch monitoring and switch operation
在開人、開出迴路設計方面，分析了傳統開人、開出的不足之處，提出了對開人、開出迴路進行改進的創新想法，設計了更為簡潔、可靠的開人、開出電路。
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