系統調用號 的英文怎麼說
中文拼音 [xìtǒngdiàoyòngháo]
系統調用號
英文
system call numbers- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 號 : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
- 調用 : transfer (officer) temporarily for a specific task; [計算機] call; invoking調用程序 caller; cal...
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The paper introduced a phase range system based on fpga embedded technology. three functional module in the range system : modulability signal generation source, information control unit and information management unit, can be designed in one pld chip, so a majority of shortcomings of traditional phase laser range were conquered by this excellent innovation in circuits
本文介紹了一種基於fpga嵌入式技術的相位激光測距系統,該系統採用先進的fpga技術,實現了調制信號產生、信息控制與處理各模塊的整合,解決了傳統相位激光測距所難以克服的弱點。The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號,其中電臺信號與伴音信號功率之比基本為10 : 1 ,並且目標散射信號較弱,一般情況下淹沒在雜波和機器熱噪聲之下,採用常規的脈沖檢測方法很難對遠距離的目標進行檢測,而以電臺直達信號作為參考與目標回波信號進行相關檢測;系統中信號的相關處理會產生旁瓣,而強目標的旁瓣會影響附近的弱目標檢測。At the same time, combining the electrostatic measurement principle and the actual working conditions of pneumatic pipelines, the author puts forward the design principle in theory and finishes the devising, executing, debugging, experimenting and analyzing the experiment phenomena and results, testing the feasibility of the electrostatic sensor to be used in the measurement on the mass flow rate of the coal paniculate. furthermore, with the debugging and experimenting of the system, the author improves the electrostatic sensor and its signal collecting system gradually according to the problems, and makes the performance of the system to be enhanced remarkably
同時,作者結合靜電測量原理以及氣力輸送管道的實際工況,從理論上提出了靜電傳感器的設計依據,完成了靜電傳感器及其信號採集系統的設計、製作、安裝、調試和實驗,分析了實驗現象和結果,驗證了靜電傳感器用於煤粉質量流量測量的可行性,並且通過系統調試和實驗,針對發現的問題對靜電傳感器及其信號採集系統不斷地進行了改進,使其性能有了顯著地提高。4. in data acquisition system, the application of phase - locked and synchronous detection reduce the cost of the whole system and improve the sensitivity. carrier signal and modulation signal achieve entirely synchronous too
數據採集系統採用鎖相技術、同步檢波的原理,降低了整個系統的成本,提高了靈敏度,並使得載波信號與調制信號完全達到同步。In the digital mobile communication, with the effect of modulation, transmission channels and demodulation, the received signal ineluctably has some distortion. frequncy offset is one of them
在移動通信系統中,信號經過調制發射、通道傳輸和接收解調的過程中,不可避免的會引入一些干擾,使得有用信號受到影響。Through utilizing the shift multiplication characteristics of m series, this kind of radar system eliminates the bad effect of doppler frequency. in theory, the doppler tolerance of the radar system can reach the half of the code rate with proposed echo pretreatment method in this paper
從理論上說,應用於該雷達系統的信號處理方法可以使得雷達系統的多普勒容限達到偽碼子碼重復頻率的一半,從而使偽碼調相雷達可以有效地發現高速目標。The design of the amplifier is described in detail and the noise in the circuit is calculated in the third chapter. several demodulating methods are compared and the design of the demodulator is described in detail in the fourth chapter
第四章,對幾種信號解調方式進行了比較,並對系統採用信號解調電路的設計原理和方案進行了詳盡的分析。The whole circuit ' s timing generation and synchronization was realized with cpld. as the channel of data transmitting, pof can isolate high voltage part and low voltage part efficiently. at the same time, a single chip processor was used to design a digital meter for the fiber current transducer
系統採用cpld實現整個工作電路的時序發生和同步協調,利用光纖實現高壓部分和低壓部分的完全電氣隔離和實現信號傳輸,採用單片機技術實現混合式光纖電流互感器專用數字顯示儀表的設計。This system is applied in the image data receiving portion. in order to debug system conveniencely, a signal source card and a data receiving card with pci interface are designed separately. the core of the signal source card is xc95144xl
本系統應用於高速圖像數據的接收部分,為了方便系統的調試與驗證,整個系統分為信號源和接收卡兩個部分來設計,分別以一塊pci插卡的形式實現。As the requirements of its function, a bus control interface board has already been designed. also the paper have provided the scenarios demonstration for the bus control interface board ( bcib ), the design for the protocol of communication, the hardware for bcib, the software for bcib, and the software for the processor ' s communication. while the analysis for the capability of real - time and the calibration and test for subsystem have been also finished. during the design, the system advanced ability, reliability, resources availability and the cost - efficency ratio are considered. the issus such as system integrated control, mutual exclusion of the shared storages, generation of handshaking signal and system self - test were resolved
本論文主要對航空自衛系統的綜合化方式進行了深入研究,並按其功能等方面要求,對航空自衛系統綜合化總線通信模塊進行了設計,主要完成了總線通信模塊方案論證、通訊協議設計、總線通信模塊硬體設計、總線通信模塊( bcib )軟體設計、處理機通信軟體設計、實時性分析、系統調試、試驗等項工作,在設計過程中,綜合考慮了系統先進性、資源利用率、費效比及可靠性等因素;重點解決了系統綜合控制方式、共享存儲器互斥、握手信號產生及系統自檢測等問題。And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion
論文首先描述了數字電視地面廣播的需求條件,技術難點和目前存在的問題,並重點分析了dvb - t系統結構流程,核心技術及系統通道特性和參數,該系統採用了cofdm (編碼正交頻分多路復用) ,大量導頻信號插入和保護間隔技術等核心技術,使之能抵抗高電平( 0db ) ,長延時的靜態和動態多徑失真,有利於數字和模擬電視的混合傳輸,它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。( 3 ) study deeply the structure of fat 16 file system and the characteristic of flash disk, and develop the file management software of flash disk to manage nc files effectively according to the management idea of fat 16 file system. ( 4 ) research the module and protocol of reliable communication in serial network, which are composed of arm main control board, dsp motion control board, keyboard board, i / o control board and encoder signal collection board, and then develop communication software of the serial network. ( 5 ) study the principle of displaying char in lcd and the method of embedding font library into operating system, and research deeply the method of embedding chinese font library into os in the light of the characteristic of chinese
本論文的主要研究內容如下: ( 1 )研究uc os -實時嵌入式操作系統在硬體平臺上的移植及其佔先式內核的任務調度原理,合理分割銑床控制系統的管理任務,根據任務的要求賦予不同的優先級和調度時間,保證任務的執行效率和實時性; ( 2 )開發底層設備驅動程序和應用程序介面( api )函數,以便於進行系統應用軟體的開發; ( 3 )深入研究fat16文件系統的結構和固態盤的硬體特性,參照fat16文件系統的管理思路,開發固態盤文件管理軟體以有效管理nc代碼文件; ( 4 )深入研究由arm主控板、鍵盤板、 i o控制板、編碼器信號採集板等裝置組成的串口通訊網路可靠通信的模型及其通訊協議,開發串口通訊網路通信軟體; ( 5 )研究字元的顯示原理和在操作系統中嵌入字庫的方法,在此基礎上結合漢字的特性深入研究中文字庫的嵌入方法,開發中文字庫嵌入軟體,滿足開發操作界面的信息要求; ( 6 )深入研究三維圖形坐標變換的原理,開發實用的三維加工軌跡顯示軟體,便於操作者對零件的加工過程進行監控和診斷。It adopts the xbrothers professional security and facility control system which includes : the real - time monitoring and controlling for the electric power supply system ; the air conditioning control system ; the ups control system ; the leaking control system ; the fire alarm system ; the video surveillance system and ; the access control system. the system provides the fire monitoring and turn to emergency status when fire detects. the system alarms for the abnormal of the important field through adjusting dynamic detecting sensors, according to the demands in the video marking field
在該監控系統中,如果檢測到消防報警信號,系統會自動聯動門禁系統打開對于重要區域的視頻劃定動態檢測報警區域,根據機房內不同的環境情況,通過調節動態檢測靈敏度,來實現移動報警系統採用模塊化結構設計,可以方便的進行系統擴充,在本項目最初實施的過程中只安裝了一套指紋加刷卡的門禁系統,在使用的過程中,根據清算中心的要求,需要對機房內的另四道門加門禁系統,則監控系統在不影響原有系統正常運行的情況下,進行系統的平滑升級,最大化的保障系統的安全與用戶的投資。Errno. h is needed for the declaration of errno, the global system call error number variable more on that below
Errno . h是聲明errno所需要的, errno是全局系統調用錯誤號變量(下面會有更多介紹) 。In this thesis, the characteristics of underwater acoustic channel were analyzed, the mcm technique and the lfm signal which were used in the multicarrier modulation high bit - rate underwater acoustic communication system was discussed in detail, the important parts in system designing were examined
論文對水聲通道特性進行了分析,就多載波高速水聲通信系統中用到的多載波調制技術、線性調頻信號進行了詳細論述,論述了系統設計中的重要環節。In this system, a tunable fiber fabry - perot ( f - p ) filter is used to detect the changes of the wavelengths of the fbgs, then both the tunable control signal and the signal indicating the changes of the wavelength transmitted by an a / d electric transmission circuit are input into computer. the corresponding changes of the measurands can be obtained by filtering, analysising and processing the experimental data by using the computer information process system
該系統採用可調諧光纖fabry - perot濾波法對fbg波長變化進行解調,通過a d轉換電路將調諧控制信號和波長變化的信號送入計算機並口,經過計算機信息處理系統的濾波,分析,處理,可得到相應被測參量的變化。Installing symbols for debugging system call crashes
安裝用於調試系統調用故障的符號To aid in debugging system calls, you can install system debug symbols
若要幫助調試系統調用,可安裝系統調試符號。Taking can - bus driving as a instance and using embedded microprocessor ' s hardware character, we provide the managing mode of multi - task communication. semaphore, mailbox and message queue is used in this paper to realize the communications mechanism of multi - task
利用嵌入式微處理器的硬體特點,以can總線驅動為例,提供系統調用多任務通信管理方式,並使用基於信號量、郵箱、消息隊列的通信機制進行多任務間的通信。This program is invoked with two parameters : the name of the system call to check and its corresponding system call number
這個程序調用時需要兩個參數:需要檢測的系統調用名稱,以及它對應的系統調用號。分享友人