ook

However , the traditional OOK modulation format is limited by its own characteristics , and cannot meet the needs of future high speed transport systems . In this context , kinds of advanced modulation formats arise , and have attracted the attention of researchers all around the world .

由于传统的开关键控调制格式受限于自身特性并不能满足高速传输系统的需要，在这种背景下，各种新型调制格式相继出现并迅速成为光通信领域的研究热点。

The transmission systems based on phase modulation formats have higher receiver sensitivity and larger nonlinear tolerance than the transmission systems based on OOK modulation format . Therefore , the phase modulation formats are very suitable for the upgrade of the transmission systems .

与基于开关键控（OOK）调制格式的传输系统相比，基于相位调制格式的传输系统有较高的接收机灵敏度和较大的非线性容限。

An OOK Modulation Circuit Design for Single-carrier UWB System

单载波UWB系统中OOK调制电路设计与实现

Interleaver Design for OOK in Optical Wireless Communication

无线光OOK调制系统交织器的优化设计

System performances using the two different pulse amplitude modulation schemes ( BPSK and OOK ) is compared .

比较了BPSK和OOK两种脉冲幅度调制方式下的系统性能；

Research and System Design of the High Speed DPSK / OOK All-Optical Label Switching System Based on OCSS Technique

基于OCSS技术的高速DPSK/OOK光标记交换系统研究与设计

Usually in this encoding scheme , ON-Off-Keying ( OOK ) modulation format is used .

通常情况下，这种编码方案会使用二进制启闭键控（00K）调制格式。

The conclusion shows DMCS can obviously improve the channel capacity compared with that of PPK / OOK system .

结论表明：双重混合调制对于提高信道容量是可行的。

F you take a better ook , they repeat them some tmes .

如果你有个好点的容貌，他们有几次重复他们。

In the past , OOK was used for digital data modulation primarily , but the data transmission rate was limited because of the ISI effect .

过去可见光通信主要使用开关键控调制方式，但由于ISI的影响使数据传输速度受到了限制。

Based on ISO 18000-6C , It is proposed that transmitter uses OOK modulation architecture and receiver uses dual-channel zero-IF architecture .

基于ISO18000-6C提出了，发送电路采用通断键控调制的体系结构，接收电路采用双通道零中频体系结构。

We also realize wavelength remodulation for carrying upstream on-off keying ( OOK ) data to reduce the cost budget at the optical network unit .

为了降低光网络单元的成本预算，我们对下行的光载波进行了上行传输开关键控信号的重调制。

In the scheme , the input signal are OOK format data and the output data are phase coded data corresponding to logic AND and OR operation of input signals .

该方案输入为OOK格式数据，输出为OOK数据对应的相位编码数据的逻辑与和或操作。

Chapter 3 introduces the other three modulation schemes , including OOK , DPPM and DH-PIM , their performance are compared , simulated and analyzed .

第三章介绍了其它三种调制方式：开关键控调制OOK、差分脉冲位置调制DPPM、双头脉冲间隔调制DH-PIM，并对这几种不同调制方式的性能进行了比较和仿真分析。

Numerical results show that there is no matching issue for an OOK system using binary linear block code because its bijection between Hamming distance and Euclidean distance .

结果表明，采用开关键控调制的系统，其汉明距离与欧式距离等价，因此不存在调制与信道编码参数匹配问题；

Lenst mean square ( LMS ) class and constant modulus algorithm ( CMA ) equalizer are studied based on on-off key ( OOK ) modulation .

基于通断键控（OOK）调制信号进行研究，计算了信道响应系数向量，然后对算法仿真。

If you1 ook too contented and complacent , the bar staff may a ume you are already being served .

你如果显得太心满意足的样子，酒保会认为他们已经为你提供服务了。

We use OOK modulation encryption method , through an external SCM circuit board to control the SMD LED luminous . The realization of the label encryption which is simple and practical .

本文利用OOK调制加密方式，通过外接单片机电路板控制贴片LED的发光，实现标签加密。

After simple introducing coherent and autocorrelation receiver , give an overview of all digital receiver situation . ( 3 ) PPM modulation and OOK modulation of the energy detection receiver performance is analyzed .

并对相干接收与自相关接收进行了简要说明后，然后概述了全数字接收机情况。（3）对基于OOK调制和PPM调制的能量检测接收机性能进行了分析。

OOK modulation is the simplest of all modulation schemes , and the most significant advantage is that it can use the non-coherent receiver with simple structure , so it can achieve low power consumption .

二进制启闭键控（OOK）调制是所有调制方式中最简单的一种，最大的优点在于能够采用结构简单的非相干接收方式，可以实现低功耗。

The paper presents an example of applying the interpolation technique to solve the problem that the OOK signal have no phase value when we use it to transmit the symbol zero , and then offers a practical simulation case .

文中对OOK（通断键控）信号在表示符号零时无相位值的问题，应用相位插补技术加以解决并给出了仿真应用实例。

On-off keying ( OOK ) is the main modulation method used in the present optical communication engineering , simple and easy to implement . But its bit error rate is so high that error correcting coding techniques are necessary .

目前无线光通信工程主要采用开关键控调制，该调制简单、易实现，但误码率高，需要引入纠错编码技术。

A scheme to achieve ultrahigh speed all-optical format conversion from on-off keying ( OOK ) to phase-shift keying ( PSK ) by using the linear filtering in the silicon ring resonators is proposed .

本文提出一种利用硅基微环线形滤波功能的全光超高速开关键控码型（OOK）到相位键控码型（PSK）的格式转换方案。

The ultra wideband ( UWB ) radio models have been introduced with pulse-position-modulation ( PPM ), on-off-keying ( OOK ) and pulse-amplitude-modulation ( PAM ) .

分析了超宽带冲激无线电的脉位调制、通断键控调制和脉冲幅度调制的信号模型。

Simulation results show that : under the condition that the occupied bandwidth and the information rate are equal , the anti-noise performance of the communication system based on chaos M-ary modulation and demodulation method can achieve the theoretical limit of the ideal incoherent OOK receiver .

结果显示：在带宽和码元速率相同的情况下，混沌振子多进制调制解调通信系统的误码率性能能够达到传统非相干OOK接收机的理论极限。

Finally , a novel wireless navigation system based on VLC technology is proposed . A bit-error-rate testing platform based on the OOK modulation and Manchester codec is designed by using FPGA development kits . The function verification experiments of the navigation system are then completed .

最后，为了探索VLC技术的应用，提出了一种基于VLC的新型无线导览系统，并使用FPGA设计了采用OOK调制和Manchester编解码的误码率测试平台，完成了无线导览系统的功能测试等实验。

The influences of BER using different modulation techniques in the weak and strong fluctuation regimes on Wireless Optical Communication systems are discussed . The results show that the subcarrier BPSK modulation is superior to the OOK and subcarrier DPSK modulations in Wireless Optical Communication systems applications .

讨论了弱、强湍流下不同调制技术对误码率的影响，结果表明：副载波BPSK调制在光通信系统应用中较OOK和副载波DPSK调制更具优势。

A direct mathematical expression for the relationship between the transmitter optics aperture and the satellite vibration amplitude has been derived . The assumption in the derived model is that the satellite communication system adapts on-off keying ( OOK ) modulation and an APD as the detector .

从接收机的比特误码率与发射机的振动关系出发，采用OOK调制方式，以APD为光电探测器，推导得到了描述发射机天线口径与发射机振动关系的数学模型。

At present , many researches about all-optical wavelength converters only based on the signal modulation formats of binary amplitude shift keying ( OOK ) and differential phase shift keying ( DPSK ), but it is very few to the signal modulation format of polarization shift keying ( PolSK ) .

目前，全光波长转换器的研究主要集中在二进制振幅键控（OOK）和差分移相键控（DPSK）信号调制格式，对于偏振移位键控（PolSK）信号调制格式全光波长转换的研究很少。