dynamic adj. 1.动力的,动力学的;力学(上)的;动(态)的;起动的。 2.有力的,有生气的;能动的;(工作)效率高的。 3.【音乐】力度;强弱法的。 4.【医学】机能(上)的。 5.【哲学】动力论的,力本论的。 a dynamic personality 活跃的性格。 a dynamic atmosphere 生气勃勃的景象。 a dynamic population 动态人口。 n. 〔限指 dynamic〕 (原)动力;动态。 adv. -ally
channel n. 1.水路,水道,渠,沟;海峡;河床,河底。 2.(柱等的)槽,凹缝;【机械工程】槽铁,凹形铁。 3.〔比喻〕路线,手段;媒介,脉络,系统,途径。 4.【无、电】波道;电路;信道;磁道;频道。 a talk channel通话线路。 a vision channel电视信道,视频信道。 the (English) C- 英吉利海峡。 C- fever 〔英国〕怀乡病。 channelof command [communication] 指挥[通讯]系统。 through a reliable channel通过可靠途径。 through the proper channel 经由正当途径[手续]。 vt. (〔英国〕-ll-) 1.在…开[形成]水道;在…上凿沟[凹缝]。 2.开(路),开辟(途径)。 3.为…开辟途径,引导。 channel one's interests 对某人的兴趣加以引导。 vi. 形成水道[凹槽]。 n. 〔常 pl.〕【航海】突出舷侧承扣支索的铁板。
Performance analysis of dynamic channel allocation strategy on hierarchical cellular networks 分层式动态信道分配移动通信系统的性能分析
Research on the expansion device of telephone line based on dynamic channel borrowing assignment mode 多信道共用方式电话线路扩容装置的研究
This paper investigates the channel assignment and dynamic channel assignment arithmetic of cellular mobile system 本论文对蜂窝移动通信系统中的信道分配以及动态信道分配算法做了一定研究。
Analyzing fixed channel and dynamic channel we obtained the substantive capacities and brought them into an inhibitable equation for channel allocation proportion 通过分析动态信道和固定信道得到各自的独立容量,将其联立作为信道分配比例的制约方程。
Tdd cdma system has both the flexibility of timeslot allocation and good adaptability to the multimedia services . the research on the dca ( dynamic channel assignment ) algorithm and its performance in the tdd cdma system has been a hotspot in these years tddcdma系统具备时隙分配的灵活性和对多媒体业务良好的适应性,使得对tdd模式下cdma系统的dca算法以及性能的研究成了近几年的一个热点。
Telephone communication is the most widely employed ways of communication in the world . telephone communication is becoming more and more important as the national economic reform deepens . dynamic channel borrowing assignment mode is an effective method in communication channel expansion . although it has been put into practical use in satellite communication and mobile communication, no one has attempted to apply it to telephone line expansion . in this paper the author expands the telephone line via dynamic channel borrowing assignment mode, ascertains the expansion scheme, designs the circuit of hardware in telephone line expansion device, draws up software programme, analyses the call lose after using the expansion device theoretically and then experiments to verify it . eight subscribers can share one or two telephone lines with the help of the telephone line expansion device with each phone a sole number . this makes it possible for subscribers to use any free telephone line . thus increasing the number of subscriber and utilization ration of telephone line . in addition . this project makes it possible for expansion subscribers to communicate directly while not to make use of outer line . which further decreased the system call lose 多信道共用是通信通道扩容的一种有效的方法,已在卫星通信、移动通信中得到应用,但尚未应用到电话线路扩容中。本文利用多信道共用原理对电话线路进行扩容,确定了多信道共用方式电话线路扩容的设计研究方案,研究设计了电话线路扩容器的硬件电路,编制了电话线路扩容器的软件,并对使用电话线路扩容器后的呼损进行了理论分析及试验研究。本文研究设计的多信道共用方式电话线路扩容器可以使8个用户共用12对电话线路,每部用户话机都具有独立的电话号码,可以利用任一空闲的电话线路,故能够增加电话用户,提高电话线路的利用率。