【摘要】：無基站通信條件下，超短波無線通信技術(shù)被廣泛地應用于軍用、救災現(xiàn)場和應急保障通信等場景中。在超短波通信應用于個人通信領(lǐng)域之后，超短波通信設(shè)備也逐漸向著小型化、智能化和高性能化發(fā)展。 隨著超短波通信設(shè)備小型化和高性能化，小型平臺如常見手持平臺通過硬件升級來提高無線通信承載能力或滿足多元化應用，這將導致功耗大幅上升。針對這個問題，智能操作系統(tǒng)通過較為完善的電源管理機制，提高整個平臺的供電效率，延長電池使用壽命。但是，當前大部分比較成熟的智能操作系統(tǒng)都處于封閉或半開源狀態(tài)，不利于自定義通信協(xié)議棧，實現(xiàn)針對特定硬件平臺的開發(fā)和優(yōu)化。 為此，本文利用Android智能手機操作系統(tǒng)的開源特性[1]，在Android操作系統(tǒng)上設(shè)計并開發(fā)了超短波通信手持式平臺軟件，實現(xiàn)了超短波寬帶通信業(yè)務(wù)服務(wù)，并具有良好的操作性、維護性及擴展性。 首先，提出超短波手持式平臺的總體功能。超短波通信平臺功能上實現(xiàn)短信和數(shù)字語音業(yè)務(wù)，性能上滿足數(shù)據(jù)傳輸率和誤碼率需求，保證通信效率和可靠性。 其次，構(gòu)建超短波手持式平臺的業(yè)務(wù)管理框架。詳細定義業(yè)務(wù)信令格式和從上層至底層以信令為主線的完整設(shè)計流程，整合業(yè)務(wù)應用層數(shù)據(jù)和語音模塊的數(shù)據(jù)接入功能，有效支撐通信業(yè)務(wù)的運作和管理。 再次，設(shè)計并實現(xiàn)超短波手持式平臺的業(yè)務(wù)管理層和底層數(shù)據(jù)傳輸模塊�；贏ndroid操作系統(tǒng)的系統(tǒng)框架和內(nèi)部運行機制，劃分業(yè)務(wù)層次和功能模塊，，給出具體的實現(xiàn)方式和流程控制，同時在底層支持全雙工通信的數(shù)據(jù)傳輸模式。 最后，驗證超短波手持式平臺軟件的通信業(yè)務(wù)處理能力。分別對上層軟件、底層語音模塊驅(qū)動和整體功能進行測試，并給出整個通信平臺的誤碼率測試結(jié)果。 Android操作系統(tǒng)為無線通信終端的開發(fā)和應用提供開源的系統(tǒng)級解決方案。本文對超短波通信的開發(fā)拓寬了Android在手持式平臺上的無線功能，在其他網(wǎng)絡(luò)不可用或不暢時完成應急通信，具有一定的實用價值。
[Abstract]:Under the condition of no base station communication, ultra-short wave wireless communication technology is widely used in military, disaster relief site and emergency support communication and other scenarios. After the application of ultra-short wave communication in the field of personal communication, ultra-short wave communication equipment is gradually developing towards miniaturization, intelligence and high performance. With the miniaturization and high performance of ultra-short wave communication equipment, small platforms, such as common handheld platforms, can improve the carrying capacity of wireless communication or meet the needs of diversified applications through hardware upgrades, which will lead to a significant increase in power consumption. In order to solve this problem, the intelligent operating system improves the power supply efficiency of the whole platform and prolongs the battery life through a more perfect power management mechanism. However, most of the mature intelligent operating systems are in a closed or semi-open source state, which is not conducive to custom communication protocol stack, and realizes the development and optimization of specific hardware platforms. Therefore, based on the open source characteristics of Android smartphone operating system [1], this paper designs and develops the handheld platform software of ultra-short wave communication on Android operating system, realizes the service of ultra short wave broadband communication service, and has good operation. Maintenance and expansibility. First of all, the overall function of ultra-short wave handheld platform is put forward. The ultra-short wave communication platform realizes short message and digital voice services in function, meets the requirements of data transmission rate and bit error rate in performance, and ensures the communication efficiency and reliability. Secondly, the service management framework of ultra-short wave handheld platform is constructed. The service signaling format and the complete design flow with signaling as the main line from the upper layer to the bottom are defined in detail, and the data access function of the service application layer data and voice module is integrated to effectively support the operation and management of the communication service. Thirdly, the service management and the underlying data transmission module of the ultra-short wave handheld platform are designed and implemented. Based on the system framework and internal running mechanism of Android operating system, the service level and function module are divided, and the concrete implementation mode and process control are given. at the same time, the data transmission mode supporting full duplex communication at the bottom level is given. Finally, the communication service processing ability of ultra-short wave handheld platform software is verified. The upper software, the underlying voice module driver and the overall function are tested respectively, and the BER test results of the whole communication platform are given. Android operating system provides an open source system-level solution for the development and application of wireless communication terminals. In this paper, the development of ultra-short wave communication broadens the wireless function of Android on handheld platform, and completes emergency communication when other networks are not available or unsmooth, which has certain practical value.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TN925;TP368.1

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