The thesis analyses the principles of the physical layer and data link layer of gsm system and the signal processing theories of gsm under unauthorized circumstances . computer simulations are given to show the feasibility of these theories . the design of real - time processing system of gsm signal is introduced , which includes a real - time processing circuit , a dsp software system and a computer monitor platform 本文分析了gsm系統(tǒng)無線接口的物理層和數(shù)據(jù)鏈路層的工作原理;詳細闡述了非正常接入條件下的gsm信號處理理論,并給出仿真結果;介紹了gsm信號實時處理系統(tǒng)的設計,包括實時處理電路和dsp軟件系統(tǒng)的開發(fā),以及主機監(jiān)控平臺的設計。
接入: insert; join up; switch on; ...條件: condition; term; factor加入條件: add condition; conditions of accession咬入條件: bite condition再入條件: reentry conditions注入條件: injection condition裝入條件: loaded condition插進輸入條件: inserting input condition插入條件檢查: insert condition checks貿(mào)易收入條件: income terms of trade模擬輸入條件: simulated input condition無效輸入條件: invalid input condition正常輸入條件: normal input cause可預設輸出入條件: presettable i/o conditions接入: insert; join up; switch on; cut over; turn on; switch in; reset; put in; place in; cut in; throw into action并入條款: incorporation clause插入條形碼: insertbarcode加入條約: accession to a treaty; adhere to the treaty列入條款: inclusion clause加入同盟, 加入條約: accession to a treaty重壓入條料坯料: push-back blank條件: 1.(客觀的因素) condition; term; factor 工作條件 working conditions; 生活條件 living conditions; 貿(mào)易條件 terms of trade; 自然條件 natural conditions; 利用有利條件 make use of the favourable factors; 根據(jù)自己的條件做某事 do sth. on one's own terms; 在這[那]種條件下 on this [that] condition; 在目前條件下 under present circumstances; 有條件要上, 沒有條件, 創(chuàng)造條件也要上。 when the conditions exist, go ahead; when they don't exist, then create them and go ahead.2.(提出的要求) requirement; prerequisite; qualification 共產(chǎn)黨員的條件 the requirements of the party members; 提出條件 put forward the requirement; list the prerequisites; 有條件地同意 agree with qualifications; 符合入學條件 satisfy the entrance requirement; 如果三項先決條件得不到滿足, 他們就拒絕談判。 they refused to negotiate unless three preliminary requirements were met. 耐心是教學必備的條件。 patience is a requirement in teaching.; 條件刺激 conditioned stimulus; 條件反射 conditioned response; conditioned reflex; 條件反應 [動物學] conditioned response (cr); 條件句 [語言學] conditional clause接入,合閘: switch in接入,接通: switch-in接入板: access board