code signal meaning in English
编码代号
编码信号
代码信号
码信号
Examples
- At first the merits and implementation of the digital pulse compression subsystem are introduced in this paper . then the characteristics of phase coded signals are discussed and the two classic binary phase codes ? ? barker code and m - sequence are dealt with in details in the following
文中首先综述了数字脉冲压缩的优点及其实现方法，接着讨论了相位编码信号的特点，并详细分析了巴克码和m序列这两类典型的二相码信号。 - Pulse compression technique and large timeband product signals such as linear frequency modulation signals , nolinear frequency modulation signals , phase coded signals and so on are widely used in modern radar systems to improve the resolving power both in range and in speed domain
现代雷达为了提高雷达作用距离和速度分辨力、距离分辨力，广泛采用了脉冲压缩技术及大时宽带脉压信号如：线形调频、非线形调频、相位编码信号等。 - This paper analyses deterioration model of bar code signals after the point spread function convolution , and presents two kinds of recognition algorithm in correspondence to different bluring degrees of bar code signal : one based on midpoints detection and the other based on waveform analysis
分析了条码信号经过点扩展函数卷积后的降质模型。针对条码信号模糊程度的不同，提出两种识别方法：基于中点检测的条码识别方法和基于波形分析的条码识别方法。 - Take integrity of object information into condition , a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design . and simulation in the background of hf multi - object with noise is taken . a comparison of signal properties , processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal
考虑到目标信息提取的相对完整性,以高频雷达为背景,在对多载波相位编码脉冲串信号参数设计的基础上,推导了三种多载频相位编码脉冲串信号的距离速度二维处理过程并相应的对多目标噪声环境进行了仿真;将多载波相位编码信号与另外两种距离高分辨信号:单载频相位编码信号和相位编码阶梯跳频信号,在信号特性、处理过程和抗噪声特性方面进行了对比;本文从理论上为多载波相位编码信号的波形设计和分析、信号的处理打下基础。 - Assigning serial different address code to different subscribers , useful signal is taken out of the same time slot and frequence , and is transmitted with one share channel . at received end , system makes use of completed address code from sending end to do correlative check and take out useful subscriber signal . the other address code signals are treated as broadband disturbing signal which is removed . in radio environment of existing variable disturbtion and muti - way declining , expand frequence signal ’ s broadband characteristics can improve system performance obviously . cdma mobile telecommunication system has some better characteristics , such as anti - disturbing 、 anti - way declining 、 secrecy 、 capacity 、 utilizing rate of frequence resource and so on , than other mobile telecommunication system
Cdma ( codedivisionmultipleaccess )移动通信系统的技术基础是基于扩频技术的码分多址,通过给不同的用户分配各自特定的地址码序列,将处于相同时隙和频率的用户信号分离开来,采用共享信道方式传输信息。在接收端,系统利用与发送端完全一致的本地地址码对接收信号进行相关检测,提取需要的用户信号,而将其他使用不同码型的信号视为宽带干扰而从中剔除掉。