本文關(guān)鍵詞： 跳頻 同步 跳頻組網(wǎng) TDMA 單片機(jī)　出處：《北京化工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：跳頻通信技術(shù)是一種載波頻率隨偽隨機(jī)序列的變化規(guī)律隨機(jī)跳變的一種通信方式,其具有較強(qiáng)的抗干擾能力,較好的隱蔽性,抗截獲能力,另外還可以根據(jù)不同的地址碼進(jìn)行多址組網(wǎng)。組網(wǎng)技術(shù)是現(xiàn)代通信技術(shù)研究的基本內(nèi)容,以實(shí)現(xiàn)多用戶之間的互聯(lián)傳輸。對于跳頻通信,為了滿足通信過程中兩個以上節(jié)點(diǎn)之間實(shí)現(xiàn)跳頻數(shù)據(jù)傳輸,需要對節(jié)點(diǎn)終端進(jìn)行統(tǒng)一管理,根據(jù)約定好的規(guī)則相互通信,優(yōu)化信道資源、提高通信效率。跳頻電臺組網(wǎng)能夠提高跳頻系統(tǒng)的抗干擾能力和隱蔽性,提升系統(tǒng)的可靠性和數(shù)據(jù)傳輸?shù)挠行浴；谔l技術(shù)以及組網(wǎng)技術(shù),本論文展開了跳頻電臺網(wǎng)絡(luò)系統(tǒng)的組網(wǎng)研究與設(shè)計,研究和設(shè)計了跳頻電臺的組網(wǎng)接入方案,組網(wǎng)同步方案以及多種通信模式。該組網(wǎng)方案適合由中心節(jié)點(diǎn)以及多個從節(jié)點(diǎn)組成的網(wǎng)絡(luò)系統(tǒng),并由中心節(jié)點(diǎn)控制網(wǎng)絡(luò)初始同步、同步保持、遲入網(wǎng)處理以及通信保持。針對組網(wǎng)過程中多節(jié)點(diǎn)跳頻接入以及同步保持問題,本文提出了一種快速的組網(wǎng)同步算法,主節(jié)點(diǎn)快速跳頻掃描,從節(jié)點(diǎn)慢速跳頻掃描跟蹤,能夠快速的建立穩(wěn)定同步。針對多節(jié)點(diǎn)同時連續(xù)收發(fā)通信的需求,設(shè)計了基于TDMA技術(shù)的多節(jié)點(diǎn)分時隙通信方式,實(shí)現(xiàn)多節(jié)點(diǎn)跳頻數(shù)據(jù)互傳以及遲入網(wǎng)節(jié)點(diǎn)遲入網(wǎng)處理。另外還對跳頻電臺組網(wǎng)的圖案組以及抗干擾性、抗截獲性進(jìn)行了進(jìn)一步的研究,設(shè)計了適合本系統(tǒng)同步過程和通信過程的跳頻圖案組,及多圖案變跳速的抗干擾策略。最終系統(tǒng)在以單片機(jī)為控制器,配合無線射頻芯片的硬件平臺進(jìn)行程序設(shè)計、驗(yàn)證與實(shí)現(xiàn),結(jié)果表明該組網(wǎng)系統(tǒng)能夠快速建立組網(wǎng)同步,實(shí)現(xiàn)多節(jié)點(diǎn)分時通信,誤碼率低,抗干擾性能好,穩(wěn)定可靠。
[Abstract]:Frequency hopping (FH) communication technology is a kind of communication mode in which carrier frequency changes with pseudorandom sequence. It has strong anti-jamming ability, better concealment and anti-interception ability. In addition, multiple access networks can be constructed according to different address codes. Networking technology is the basic content of modern communication technology to realize interconnection transmission between multiple users. In order to realize the frequency hopping data transmission between two or more nodes in the communication process, it is necessary to manage the node terminals uniformly, communicate with each other according to the agreed rules, and optimize the channel resources. Improve communication efficiency. Frequency hopping radio network can improve the anti-jamming ability and concealment of frequency hopping system, enhance the reliability of the system and the effectiveness of data transmission. In this paper, the research and design of frequency hopping station network system is carried out, and the network access scheme of frequency hopping station is studied and designed. The network synchronization scheme and various communication modes are suitable for a network system composed of central nodes and multiple slave nodes, and the center node controls the initial synchronization and synchronization of the network. In order to solve the problem of multi-node frequency-hopping access and synchronization maintenance in the process of networking, this paper presents a fast synchronization algorithm, which is fast frequency-hopping scanning for master node and scanning tracking for slow frequency-hopping from node. To meet the need of multi-node continuous transceiver communication, a multi-node time-slot communication method based on TDMA technology is designed. The multi-node frequency hopping data is transmitted to each other and the late access node is processed. In addition, the pattern group, anti-jamming and anti-interception of the frequency hopping station network are further studied. The frequency hopping pattern group suitable for the synchronization process and communication process of the system is designed, and the anti-jamming strategy of multi-pattern variable speed hopping is designed. Finally, the system is programmed with the MCU as the controller and the hardware platform of the radio frequency chip. The results show that the system can quickly set up network synchronization, realize multi-node time-sharing communication, low bit error rate, good anti-jamming performance, stable and reliable.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN914.41

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本文編號：1524335