Semaphores and message queues provide mechanisms to allow cooperating tasks to communicate with each other.

VxWorks應(yīng)用程序采用多任務(wù)的設(shè)計思想，根據(jù)要求分配任務(wù)優(yōu)先級91視频免费看，各任務(wù)通過信號量和消息進行通信农村一级做a爰片久久毛片A片，具備很高的實時性国产人人搞人人舔。

The scheme decreases the computation and storage of mobile nodes with reduced commutation overhead.The security is also improved for the initially existence of the off-line trued third party.The scheme provides high availability and security due to the distributed public key management model and gives a good solution to the problem of public key revocation dependent on the localized trust model.The server nodes of public key management can be dynamically adjusted to adapt to the dynamic nature of MANET.

方案中不需要公鑰證書的存在日韩欧美性爱啪啪网，減少了系統(tǒng)通信開銷以及結(jié)點的計算量和存儲容量最新黄视频网站；在組網(wǎng)時依賴于一個離線的可信任機構(gòu)，提高了系統(tǒng)的可信度国产精品国产AV永久入口久久久；采用分布式CA模型久久国内精品视频，克服了傳統(tǒng)集中式CAN用性與安全性的問題；依靠局域化的信任模型人人操人人看人人干人人爽，對惡意結(jié)點進行了有效的處理免费毛片在线视频观看，較好地解決了公鑰撤銷問題；****管理服務(wù)結(jié)點可動態(tài)調(diào)整欧美精品视频在线观看免费，能夠較好地適應(yīng)MANET的動態(tài)特性99视频在线免费。

It can be used in the tracking system of a mobile satellite communication system to make the beam of the directional antenna on a vehicle point to the satel...

該系統(tǒng)能消除載體的變速運動對輸出航姿角的影響，結(jié)構(gòu)簡單一级a爱视频免费网站aaa、緊湊欧美精品永久在线观看，成本較低，可用于定向性移動衛(wèi)星通信天線跟蹤衛(wèi)星的開環(huán)控制系統(tǒng)中国产曰又深又千爽免费视频。

Raytheon Company further demonstrated its leading edge Joint Battlefield Integration capability earlier this month with a real-time hardware in-the-loop demonstration of Joint Command, Control, Communications and Intelligence (Joint C3I).

雷聲公司于本月早些時候在聯(lián)合指揮H动漫无码网站免费看网址免费A片、控制久久中文字幕人妻丝袜、通信及情報（聯(lián)合C3I）演示中日本视频高清WWW，進一步展示了其在聯(lián)合戰(zhàn)場集成能力方面的領(lǐng)先性。

Through analyzing the technology characteristics of electronic intelligent trip, a new good performance and inexpensive intelligent trip AITU is developed which is of the advantages such as motorization, strong currency characteristics, and integrated the functions of measure, watching, protection, control and communication.

它共有六個模塊：微處理器模塊久久一免费视频、待測信號獲取模塊国产精品视频一二三四五、電源模塊、控制模塊免费看美女隐私不遮网站、人機交互模塊中文字幕乱码亚洲无限码、串口通信模塊，可根據(jù)具體需求在軟白白免费发布在线观看、硬件上增加或裁減部分模塊91偷啪自啪在线播放第二十页，具有很強的靈活性；而且精度高国产精品手机免费，穩(wěn)定性好wwwav72com，實時性強，完全符合國家的標準要求。

Aiming at the problems that alarming signal of gas alarming head lamp at present can′t be obtained by monitoring center and fixed gas detector has small monitoring areas and is difficult to move,the paper proposed a design scheme of multi-function gas alarming head lamp with the function of wireless transmission of gas overrun signal.

針對目前瓦斯報警礦燈的報警信號不能被監(jiān)控中心獲取及井下固定瓦斯探頭檢測范圍小免费女厕偷拍一级A片、移動性差的問題欧美粗大视频，文章提出了一種具有瓦斯超限信號無線傳輸功能的多功能瓦斯報警礦燈的設(shè)計方案，詳細介紹了該礦燈的硬件與軟件設(shè)計性感粉嫩裸体美女自慰，給出了無線射頻通信方案及其關(guān)鍵技術(shù)日本黄色A片视频在线观看。

The embedded display and control impoldered board basede on ARM9 adopt the chip with ARM9 core as MCU and use multi-peripheral interface and independent the display module.This board can realize the exchange and display for information and multi-communication means and have favorable expansibility and transplantability.

系統(tǒng)的顯示與控制開發(fā)板采用帶有ARM9核的芯片作微處理器，輔之以多種外圍接口和獨立的顯示模塊a片人人人人v人人人人人人a片人，實現(xiàn)了信息的交換與顯示和多種通信手段青青草国产亚洲欧洲，提供了良好的人機交互，同時具有良好的可擴展性和可移植性精品国产专区在线观看。

To meet the requirements of geographical decentralization, large amount of acquisition points, less data, quasi real-time mode of distribution networks, the data acquisition communication newrok was realized by the commercially available GPRS/CDMA wireless public network and was connected with the wirelss network operators with Access Point Name.

針對配電網(wǎng)地理位置分散国产黄色试看视频、采集點多、數(shù)據(jù)量少黄色网站欧美在线免费看、準實時性要求的特點99九九久久综合伊人不卡，數(shù)據(jù)采集通信網(wǎng)絡(luò)采用成熟的GPRS/CDMA無線公網(wǎng)實現(xiàn)，以APN專線方式與無線網(wǎng)絡(luò)運營商連接在线黄片m。

To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.

針對線性調(diào)頻連續(xù)波雷達實現(xiàn)中急待解決的技術(shù)問題日韩精品入口在线观看，文中提出并驗證了線性調(diào)頻連續(xù)波信號的綜合動態(tài)測試技術(shù)，可以完成對線性調(diào)頻連續(xù)波雷達發(fā)射信號的掃頻線性度久久久国产99久久国产产、掃頻帶寬和掃頻斜率的綜合動態(tài)測試国产精品国产原创国产AV，為衡量實際線性調(diào)頻連續(xù)波雷達的系統(tǒng)性能創(chuàng)立了精確有效的測試手段；文中建立的非實時閉環(huán)動態(tài)校正技術(shù)使一部實際的線性調(diào)頻連續(xù)波雷達的發(fā)射信號（時帶積3×10〓）的掃頻線性度從25%改善為0.1%（方均根線性度0.04%）十八禁亚洲黄污啪啪网站，優(yōu)于國外已公布的80年代同類雷達中采用復(fù)雜的實時閉環(huán)動態(tài)校正環(huán)路所獲得的實際結(jié)果（0.22%）日韩手机黄色视频；為了改善線性調(diào)頻連續(xù)波雷達的實時性和分辨單元數(shù)處理能力，文中發(fā)展完善了實帶通信號的采樣定理并給予了嚴格證明国产精品玖玖爱，并在此基礎(chǔ)上提出了欠采樣等效混頻原理国产馆在线精品极品麻豆，將其應(yīng)用于實際線性調(diào)頻連續(xù)波雷達的距離分段處理中；針對線性調(diào)頻連續(xù)波雷達中系統(tǒng)背景干擾和回波動態(tài)范圍問題日本小穴视频，創(chuàng)立了系統(tǒng)背景綜合抑制技術(shù)和頻域動態(tài)范圍壓縮技術(shù)毛毛看毛片，并將它應(yīng)用于實孔線性調(diào)頻連續(xù)波雷達系統(tǒng)中，顯示出它們的有效性日韩成人教师在线观看视频。

The key design techniques of CAN interface were discussed.The priority of the transmitting message was set in terms of the identification code of CAN frames.

利用CAN總線數(shù)據(jù)幀的標識碼設(shè)置傳輸報文的優(yōu)先級欧美一级美女A片，通過設(shè)計優(yōu)先級晉升算法來改善多軸嵌入式數(shù)控系統(tǒng)報文數(shù)據(jù)通信的實時性和有效性。