roll-off
英 [rəʊl ɒf]
美 [roʊl ɔːf]
网络 衰减; 滚降; 滚降斜率; 下降; 转降
双语例句
- Application of PLC in Hydraulic System of Joint Bridge of Roll-off Ship
PLC在客滚连接桥液压系统中的应用 - Square-root raised cosine roll-off digital filter was widely applied to baseband shaping filter and match filter in modern digital communication.
现代数字通信中广泛采用平方根升余弦滚降数字滤波器作为基带成形滤波器和匹配滤波器。 - Optimum Design for Work Attachment of Roll-off Garbage Truck
拉臂式垃圾车工作装置优化设计 - The anti-rolling tank is one of stabilizing equipments, and it fits for ships working at zero speed or low speed such as passenger and train ferry, roll-off vessel, research and exploration vessel and so on in particular.
减摇水舱是船舶减横摇装置之一，它适用于经常工作在零航速或低航速的船舶减摇，如车客轮渡、滚装船和科学考察船等。 - It was shown that the novel device could suppress threshold voltage roll-off, hot carrier and drain-induced barrier lowering effects efficiently, and increase carrier transport speed through the channel considerably.
结果表明，新结构器件能有效抑制阈值电压漂移、热载流子效应和漏致势垒降低效应，并显著提高载流子通过沟道的输运速度。 - The writer analyses the problem existing in the market of roll-on roll-off transport at present.
详细分析了滚装运输的特点及我国不同地区滚装运输的兴起和发展，对存在的问题进行了概括的分析。 - The variable center frequency band-pass filter is designed by optimization technique and one-pole roll-off model is used to deal with the operation amplifier of the filter.
本文采用单极点转移模型处理运算放大器，应用最优化方法对可变中心频率带通滤波器进行了设计。 - The Design of a Roll-on/ Roll-off Car Passenger Coastal Ferry
近海航区车客滚装渡船的设计 - Design and Implementation of Raised Cosine Roll-off FIR Filter Based on FPGA
基于FPGA的FIR升余弦滚降滤波器设计与实现 - It is shown that ISI can be reduced by introducing roll-off around the Nyquist frequency at the expense of small spectral inefficiency.
以小的频带损失在Nyquist频率附近引入滚降，可使ISI进一步减小。 - An optimal design method, taking zeros and poles of a network as optimal variables, for the baseband forming network with the raised cosine roll-off is presented in this paper.
本文提出了一种以网络零、极点为优化变量，设计升余弦基带成形网络的优化方法。 - At first, the author investigates the rise and the characters of different the stages of the roll-on roll-off transport in three Gorges of Changjiang River.
本研究从川江滚装运输的兴起入手，调查研究了滚装运输的发展阶段及其在各个阶段的特征。 - The Study of Overall Performance of the Shallow Draft Roll-on Roll-off Transport System
海上浅吃水滚装转运系统研究 - On Strategy of Development of SWOT Analysis Method of the Yangtze River Roll-on/ Roll-off
基于SWOT分析法的川江滚装船的发展战略研究 - An OTA Based High Roll-Off Frequency Continuous-Time Filter
基于OTA的高频连续时间滤波器 - In the thesis the author summaries the state of roll-on roll-off transport in foreign and in our country and reviews the history of this kind of transportation in our country.
本文在概述了国外滚装运输的发展状况后，回顾了我国滚装运输的发展历程。 - Discussion on Technical Plans for Roll-on Roll-off Functions Added to Existing Common Wharfs
对码头增设滚装功能技术方案的探讨 - The Inter-Symbol Interference ( ISI), some kinds of shaping-filter technologies are introduced and the performance of raised cosine roll-off filter and the square-root raised cosine roll-off filter are compared.
针对通信系统中的码间干扰以及目前通用的几种成形滤波技术进行了研究，并对其中的升余弦滚降滤波器和平方根升余弦滚降滤波器进行了对比。 - Then according to decided districts and the future production regulation of main automobile producers, this thesis calculates future volume of roll-on roll-off transportation, and comes up with the scale of future fleets.
接着根据所确定的水运优势区域和生产商的未来生产规划，确定未来滚装运输的数量，从而提出船队未来的发展规模。 - It is found that selecting appropriate value of duty cycles of Gauss light pulse signal, frequency chirp and the roll-off factor of raised cosine pulse signal produced by the equalizer of an optical receiver can improve the sensitivity of the optical receiver.
发现适当选取高斯光脉冲信号的占空比、啁啾分量、光接收机均衡滤波器输出的升余弦频谱波形滚降因子的值可以提高光接收机灵敏度； - Deck lifting platform is a mobile equipment used for deck lifting operation in roll-on/ roll-off ship.
甲板升降平台是一种用于滚装船甲板顶升作业的移动设备。 - The DMG structure coupling with the insulator halo, the threshold voltage roll-off and drain-induced-barrier-lowering ( DIBL) decrease and the sub-threshold characteristics have been improved.
由于DMG结构和介质Halo的相互耦合，阈值电压漂移和漏致势垒降低（DIBL：Drain-Induced-Barrier-Lowering）减小，亚阈值特性得到改善。 - The PAPR performances of SC-FDMA signals in different modulation mode are simulated and analyzed by adjusting the pluse shaping filter roll-off factor and numbers of system subcarriers. At the same time, the PAPR performance of OFDMA system is compared.
仿真中通过调整脉冲成形滤波器的滚降系数和系统子载波数目，分析其对SC-FDMA信号PAPR特性的不同影响，并与OFDMA系统进行了PAPR的仿真比较。 - This method can directly process IF ( Intermediate Frequency) signals, and it is independent on the modulation method and roll-off coefficient. It exhibits good SNR estimation performance under shortwave channel.
该方法能够对中频信号直接处理，与调制方式和发送端成型滤波器的滚降系数无关，在短波信道下也能较好地估计出信号的信噪比。 - Simulation results show that with the increase of filter roll-off factor, the PAPR of SC-FDMA system will reduce; with the increase of numbers of system subcarriers, the PAPR of SC-FDMA system will increase.
仿真结果表明随着滤波器滚降系数的增加，SC-FDMA系统的PAPR会减小；而随着系统子载波数目的增加，SC-FDMA系统的PAPR会增大。 - Simulations show that the proposed roll-off factor and chip rate estimators have good performance at low SNRs. 4.
仿真表明所提出的滚降系数和码速率估计方法具有较高的估计精度，并且具有低信噪比适应能力。 - In addition, the estimated performance against roll-off factor, modulation coefficient, SNR value was also investigated. Finally, the proposed algorithms were implemented on the DSP-based hardware system.
除此之外，还对信噪比、滚降和调制系数对检测性能的影响进行了测试。本文最后在基于DSP的演示系统上对本文算法进行了实现。 - This algorithm can achieve considerable symbol timing accuracy with a steep roll-off timing metric trajectory.
所提出的算法定时度量函数具有陡峭的波形，大大提高的符号定时估计性能。