延迟 delay; lag; defer; postpone; put off; hold over; retard 将这件事延迟到下次会上讨论 hold the matter over till the next meeting; 展览会开幕的日期延迟了。 the opening of the exhibition has been postponed.; 延迟报警 delayed alarm; 延迟计数器 delay counter; 延迟继电器 delayed relay; 延迟装置 deferred mount; [电学] delayed action device; time-lag device;延迟自动增益控制[电学] delayed automatic gain control
Firstly , the principle and realization of the step acquisition and delay locked loop are discussed 首先,论文讨论了步进捕获延迟锁定环的原理及实现机理。
The principle of large step fast acquisition and the circuit design of large step fast acquisition delay lock loop ( lsdll ) are disgussed as the emphasis 本文着重从理论和电路设计两方面对大步进快速捕获方法和大步进快速捕获延迟锁定环进行讨论。
First , we analysize the performance of coherent and noncoherent dlls , then we give an implementation scheme of dll and a design method of carrier tracking loop . the design methods and a implemention scheme of a fir shaping filter is proposed in the fifth part 首先分析了相干和非相干延迟锁定环的性能,接着给出了一种dll跟踪环路的实现方案和一种载波跟踪环路的设计方法。第五部分介绍了一种fir成型滤波器的设计和实现方法。
It consists of three main parts : in the first part , we analyse the effect of multipath on code - tracking loops of receivers in spread - spectrum ranging systems . first , we establish the model of received signals with the present of multipath through the presentation of multipath ’ s characters . then , we analyse the theory of delay lock loop ( dll ) , based on which we derive the tracking error of dll caused by multipath 首先通过对多径信号特性的分析得到存在多径时的接收信号模型,然后在对扩频测距系统的延迟锁定环路( delaylockloop )工作原理的分析的基础上,阐明了多径存在时码跟踪环路产生误差的机理。