User password, manage passwords and code hopping hierarchical management, user and admin password can modify according to customer needs.
用户密码、管理密码和跳码分级管理，用户密码和管理密码都可以根据客户需求自行修改。
Also, this paper describes the main control unit and the whole design of the system, and analyzes the encryption principle of the code hopping encoder adopted by this system.
描述了系统主控单元的选择及系统的整体设计，分析了系统所采用滚动编码的加密原理并对滚动编码与固定编码的安全性作了比较。
However, the cost of process hopping to the database is still high, thus performance on the data tier is the first place to look when optimizing your code.
然而进程跳跃到数据库的成本依然很高，因此数据层的性能是您在优化代码时首先要考虑的问题。
It is resolved that the problem is the machine-processed of rolling hopping code and forward predicting synchronous technology, too.
解决早期使用的固定密码方式易破解的问题，并解决了滚动跳码机制及前向预测同步技术。
It also gives structure of the system and circuit of the hardware, and describes the principle of hopping code and process of the software decoding.
给出了系统结构框图及硬件电路图，并对跳码产生的原理及软件译码的过程进行了详细描述。
In this thesis, a new quasi-synchronous multiple access scheme suitable for FH communication system employing NHZ hopping code is proposed.
为了利用无碰撞区跳频码的特点，论文提出了一种适用于基于无碰撞区跳频码跳频通信系统的多址接入准同步组网方案。
The UWB impulse radio technology is a new kind of communication method these years, in which the swash impulse and time-hopping code modulation techniques are mainly applied.
超宽带冲激无线电技术是近年来新兴的通信技术，其主要核心技术是采用了冲激脉冲技术和跳时码调制。
The hopping code technology is an encryption and decryption technique that data transfer is of high security, and the hopping code mechanism makes each transmission unique.
滚动码技术是一种使数据传输具有极高保密性加解密技术，且每次传输的代码都是唯一的。
Based on OOC code, this paper proposes a coding scheme of wireless optical CDMA by using prime frequency hopping.
以ooc编码为基础，利用素数跳频技术，提出一种三维无线光cdma编码方案。
The No-Hit-Zone (NHZ) hopping code is employed by the frequency hopper of NHZ FH communication systems, which have no hits at all within a predefined correlation zone in the vicinity of zero shift.
无碰撞区跳频通信系统的跳频器所使用的跳频码是无碰撞区跳频码，该码在零位移附近一段区域内汉明相关值为零。
In this paper, the effects of a follower jamming on the performance of a delay-lock code tracking loop in a frequency hopping system are analysed.
本文分析了跟踪干扰对跳频系统中码跟踪环性能的影响。
This paper particularly introduces hopping code theory and sending code format.
本文详细分析了滚动码技术的编解码原理及发码格式。
The synchronization information is carried by short code, which overcomes the difficulty of correlation code transmission in fast frequency-hopping.
采用短码携带同步信息，克服了快速跳频难以携带相关码的困难。
The synchronization information is carried by short code, which overcomes the difficulty of correlation code transmission in fast frequency-hopping.
采用短码携带同步信息，克服了快速跳频难以携带相关码的困难。
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