In the UWB wireless communication system, time-hopping technique plays a key role.
在超宽带无线电通信中，跳时技术起着至关重要的作用。
It assigns different PN time-hopping codes to different users. The signals for reference and symbol in a frame have the same time-hopping value.
该方式给每个用户分配不同的伪随机跳时码，根据跳时码参考信号和数据信号进行相同量的跳时。
Therefore, the time-hopping sequences 'properties of the pros and cons directly affect the entire ultra-wideband wireless communication systems.
所以设计的跳时序列的相关性能优劣会直接影响到整个超宽带无线通信系统的好坏。
Then, this dissertation analyses the basic UWB waveform and compares two different data modulation schemes which adopting time-hopping modulation.
接着，在分析了基本的UWB波形的情况下，研究比较了采用跳时调制不同的数据调制方案。
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 number of time-hopping sequences directly determines the number of users in the communication system, while it is also a reliable guarantee of the synchronization and channel detection.
跳时序列的数目即是该通信系统中用户的数目，同时它也是整个通信系统同步与信道检测的技术上的保证。
Secondly, the performance of time-hopping sequences based on permutation-sequences, quadratic congruence sequences, cubic congruence sequences and hyperbolic congruence sequences are compared.
对置换跳时序列与二次同余跳时序列、三次同余跳时序列、双曲同余跳时序列进行了性能比较。
Laurahas mapped out a course hopping from port to port that means she will getplenty of time on dry land and visits from family during the voyage.
劳拉制定了港到港的航行路线，这也意味着她有足够的时间呆在陆地上而且也能在旅程中跟家人团聚。
Over time, they’ve spread through our genomes and though they’re still capable of hopping from one place to another, they do so quite rarely.
尽管还有能力跳来跳去，它们已经很少这么做了。
Spend time video-hopping on YouTube for related videos.
在视频网站上寻找相关的视频。
The lifetime is a critical parameter for time hopping ultra wide band(TH-UWB) wireless sensor networks.
生存期是跳时超宽带无线传感网的一个关键参数。
It is crucial to study the features of the frequency hopping signals in both time and frequency domain in order to detect and trace the FH signals.
对跳频信号的时频域进行分析是研究跳频通信，实现识别、跟踪跳频信号的重要基础。
Based on the system of digital FFTreceiver, a "Time delay guiding" de-hopping method is introduced.
文中提出了一种基于数字式FFT接收机体制下的延时引导的解跳方法。
We also introduce the application of SESS in hopping frequency, hopping time communication system and multiple access system, etc.
此外，介绍了自编码技术在跳频、跳时系统中的应用和自编码多址技术。
The performance of time hopping pulse position modulation (TH-PPM) UWB system using this wavelet monocycle was studied under additive white Gaussian noise (AWGN) channel.
同时还研究了在加性高斯白噪声(AWGN)信道中，跳时扩频脉位调制(TH PPM)的UWB系统中使用该窄脉冲的系统性能。
This paper will discuss a new way to speed frequency hopping of frequency synthesizer. This way will assure that loop circult is locked in a very short time.
本文介绍一种加快频率合成器跳频速度的新方法，该方法能确保环路的初始频差在快捕带以内，使环路迅速捕获锁定。
When networking communication with frequency hopping technology, there exists many problems caused by the collision conflict, the longer network time, address conflicting, and timeliness reduces.
使用跳频技术进行网络通信时，碰撞冲突会导致组网时间过长、地址容易冲突、实时性降低等问题。
Over time, they've spread through our genomes and though they're still capable of hopping from one place to another, they do so quite rarely.
久而久之，他们遍布于我们的整个基因组，另外他们还可以从一个地方跳到另一个地方，虽然这非常罕见。
Some technique problems in fast frequency hopping synthesis are solved by making use of a programmable time division-fractional division PLL.
该合成器采用程控时分复用小数分频锁相技术，解决了快速跳频频率合成中的诸多固难。
In order to enhance the anti-interception performance of modulation-hopping technology, a method to design wide-gap chaos modulation hopping pattern based on time of day(TOD) is proposed.
为增强调制跳变技术的抗截获性能，提出一种基于时间信息（TOD）的宽间隔混沌调制跳变图案设计方法。
The potential temporal hopping point set is fetched from the temporal projection variance of the adjacent domain time-frequency image according to the instantaneous signal bandwidth.
根据跳频信号瞬时带宽，将潜在跳频频率点邻域时频图投影到时域，分选潜在频率跳变点集合。
The paper investigates the time evolution of a Gaussian wave packet in a tight-binding ring model with uniform nearest-neighbor hopping integral.
探讨了一维均匀紧束缚环模型中高斯波包的时间演化规律。
At the same time, core staff job hopping rate is absolutely high, along with a great personnel flow frequency.
同时，核心员工离职率高、跳槽率高，人员流动频繁。
In order to achieve normal communication between the frequency-hopping transmitter and the receiver, the two sides must send and receive information over the same frequency at the same time.
为了实现跳频电台之间的正常通信，收发双方必须在同一时间同步地跳变到同一频率。
Chapter 3 considers location of a stationary target with time-varying emitting signal, such as frequency hopping signal and linear FM signal.
在第三章里，主要研究了频率时变信号（如频率捷变信号和线性调频信号）的定位算法。
Test results proved the feasibility of the system, which could successfully extract the signal parameters and demodulate the frequency-hopping signals of high hopping in real time, the compreh…
测试表明该卡具有较好的性能，实现了对跳速较高的跳频信号的盲参量提取和实时解跳解调，并且可以广泛的应用在短波及卫星等大多数应用场合对处理能力的要求。
Test results proved the feasibility of the system, which could successfully extract the signal parameters and demodulate the frequency-hopping signals of high hopping in real time, the compreh…
测试表明该卡具有较好的性能，实现了对跳速较高的跳频信号的盲参量提取和实时解跳解调，并且可以广泛的应用在短波及卫星等大多数应用场合对处理能力的要求。
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