捕獲序列 的英文怎麼說
中文拼音 [bǔhuòxùliè]
捕獲序列
英文
acquisition sequence- 捕 : 捕名詞(姓氏) a surname
- 獲 : Ⅰ動詞1. (捉住; 擒住) capture; catch 2. (得到;取得) obtain; win; reap 3. (收割) reap; harvest Ⅱ名詞(姓氏) a surname
- 列 : Ⅰ動1 (排列) arrange; form a line; line up 2 (安排到某類事物之中) list; enter in a list Ⅱ名詞1...
- 捕獲 : 1. (捉到; 逮住) catch; capture; succeed in catching; acquire; arrest; seize 2. (俘獲) trapping
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It was found that they were fit for the lpi applications. on the digital signal processing, we studied the demand on compute ability for fast acquest. we designed a new signal form named ds - fh - th signal which costs less in processing but without any lost on the lpi performance
在信號的數字處理方面,分析了直接序列擴頻雷達在信號捕獲階段對計算能力的要求,在不降低系統lpi性能的基礎上,設計了ds - fh - th雷達信號,降低系統對計算能力的要求。In this paper, research on the algorithm of complete digital if and baseband transmission system and the realization of transmitter and receiver. / 4 - dqpsk is chosen as digital modulation scheme. the scheme of demodulation is baseband differential detection. sliding correlator can realize the symbol synchronous acquisition ; early - late gate synchronizer is used to do symbol synchronous tracking
系統的發射機選定/ 4 - dqpsk為調制方式,接收機採用基帶差分解調的非相干解調方式,滑動相關器捕獲發送的pn序列,早遲門同步器跟蹤符號同步,使用相關器對同步后的符號進行最佳判決,並在這些演算法實現的基礎上,實現了直接序列擴頻和解擴技術。This paper investigates the key technology of the ds - cdma system - psendonoise ( pn ) code acquisition technology. various pn code acquisition scheme has been introduced here
本文對ds - cdma系統中的關鍵技術?擴頻序列的捕獲?進行了深入的研究,介紹了擴頻序列的多種捕獲方案。In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition
本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論,然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼,並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬,分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下,可以獲得較短的捕獲時間和較大的捕獲概率。Frame synchronization, acquisition and tracking of cc - codes are simulated. continual special code insertion method is used in the simulation of frame synchronization
分別對幀同步、完全互補碼的捕獲、擴頻碼序列的跟蹤進行了模擬研究。Appropriate data compression methods are needed to assure the random nature of the information source and to enlarge its entropy. in this thesis, first, we present the theory of sess system, then the acquisition method of sess system is discussed in detail, finally, a acquisition model of sess system is built and simulated in the awgn channel, in the raleigh fading channel and in multi - address interfere condition. the simulation results show the acquisition method of sess system can be just as reliable as the conventional dsss systems
本文首先對自編碼擴頻通信的基本原理,自編碼擴頻序列的產生方法及其產生的序列的特性進行了概述,然後詳細討論了直擴通信系統中的擴頻碼的捕獲跟蹤問題,根據自編碼擴頻通信的特點,設計了其捕獲跟蹤方案,並在加性高斯白噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬。Pn acquisition involves coarsely aligning the local replica generated in the receiver with that of the received signal and pn tracking is to realize the synchronization accurately, so pn acquisition is the emphasis and difficulty of pn synchronization
序列捕獲實現擴頻序列的粗同步,序列跟蹤實現擴頻序列的精確同步,序列捕獲是擴頻序列同步的重點和難點。To validate the performance of the proposed scheme, the scheme is simulated with fpga, and the simulation result indicates that compared with the conventional pn acquisition schemes, the pn acquisition using auxiliary sequence and binary search can decrease the acquisition time greatly on the same condition
同時,為了進一步驗證該同步捕獲方案的捕獲性能,文中採用fpga器件對捕獲方案進行模擬,分析結果表明:與傳統的序列捕獲方案相比,基於輔助序列和二分法的同步捕獲方案可以在系統復雜度和性能不變的前提下,大大縮短捕獲時間,實現擴頻序列的快速捕獲。The measurement of the time interval of ultrasonic send wave and echo used the catch method of 52 series mcu, and avoided the error that the isr save the current value of counter
超聲波發射波和回波的時間間隔的測量利用了52系列單片機的捕獲方式,避免了因為藉助于中斷服務程序來保存計數器的當前值所帶來的誤差。It addresses the theory of character modeling " motion representation. then analyzes and cornmeflt on the typical ways of 3d motion creation, including motion captllfe " motion picture sequence tracking. kinematics and dynamics
論述了運動角色建模、運動數據表達的思想,然後分析了三維運動數據生成的典型方法,包括運動捕獲、運動圖象序列跟蹤、運動學方法以及動力學方法,並對不同方法進行比較評述。The correlation properties of pn sequence are widely used for synchronization in conventional cdma systems, and corresponding synchronization algorithms are very mature by now, so a new synchronization technique based on the correlating properties of pn sequence is discussed in this paper, in which synchronization may be performed after ofdm deframe and before fft conversion in order to make full use of transmitted cdma signal structure
本論文針對基於pn序列的相關特性深入地討論了mc - cdma移動通信系統的同步捕獲技術,對同步捕獲的原理和方法作了較為深入的研究,詳細分析其捕獲方案,推導出它的主要性能指標並進行分析。If the signal handler returns, the process continues executing the normal sequence of instructions it was executing when the signal was caught
如果信號處理器返回,則進程繼續執行信號被捕獲時正在執行的正常的指令序列。When a signal that is being caught is handled by a process, the normal sequence of instructions being executed by the process is temporarily interrupted by the signal handler
當進程處理所捕獲的信號時,正在執行的正常指令序列就會被信號處理器臨時中斷。For example, a sales support application might use a download - only article type for price list reference data to a device while relying on data capture and upload to capture new orders on the device and then upload them to a server
例如,銷售支持應用程序可能會將價格列表參考數據的僅限下載項目類型用於設備,同時依賴于數據捕獲和上載以捕獲設備上的新訂單,然後將它們上載到服務器。Because of the reason above, a novel pn acquisition method using auxiliary sequence and binary search is proposed. because the cross correlation between auxiliary sequence and spread sequence is linear, some search algorism can be used to estimate the phase of incoming signal quickly without increasing the complexity of system
因為輔助序列與擴頻序列的相關函數近似滿足線性單調性,可以利用快速搜索演算法,如:二分法,對接收信號中擴頻序列的相位進行快速搜索,在保證系統復雜度不變的前提下,降低序列捕獲的時間。Currently, the most common way to capture join points utilizes the implicit properties of program elements, including static properties such as signature which consists of type and method name, argument types, return type and exception type, etc. and lexical placement, as well as dynamic properties such as control flow
目前,捕獲連接點的最常用方法是利用程序元素的隱式屬性,包括靜態屬性,如簽名(它包括類型和方法名、參數類型、返回類型和異常類型等)和詞匯排列( lexical placement ) ,以及動態屬性(如控制流程) 。分享友人