提出了一种新的降低正交频分复用系统峰均功率比的方法。
A new method is proposed to reduce the peak-to-average power ratio of orthogonal frequency division multiplexing system.
正交耦合器是一个很好的方式，具有配电，高分离和高功率的能力。
Quadrature couplers are an excellent way for power distribution due to a high isolation and high power capability.
本文研究了采用正交磁场的波长为6328a的横向塞曼激光器的功率调谐曲线和拍频调谐曲线。
This paper studies power tuning curve and beat frequency tuning curve of 6328a transverse Zeeman laser adopted mutually orthogonal magnetic fields.
提出了一种基于分割传输序列(PTS)改善正交频分复用信号峰值平均功率比(PAPR)的优化算法。
An optimal algorithm based on partial transmit sequences (PTS) for reducing the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing signal is presented.
部分传输序列(PTS)是一种复杂度较高的减小正交频分复用(OFDM)系统峰均功率比(PAPR)的方法。
Partial transmit sequences (PTS) is a method with high complexity to reduce the Peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) system.
采用正交磁场由功率调谐曲线实现稳频，可使双频频差的漂移量大大降低。
Adopting mutually orthogonal magnetic fields, the power tuning curve is utilized for stabilizing optical frequency, the frequency difference drift of double frequency is lower greatly.
为消除LY 12 CZ铝合金激光焊接时焊缝中常见的气孔和裂纹缺陷，通过正交实验，优化了激光功率、扫描速度、保护气体流量等工艺参数，并采取适当的焊前预处理工艺。
Through orthogonal experiment, laser power, scanning rate and gas flow were optimized and pretreatment techniques were adopted to cancel pore and crack in laser weld of LY12CZ.
通过小功率磁控管微波干燥设备干燥黄姜的正交实验，总结出黄姜最佳干燥工艺，并分析了干燥黄姜时的耗时和耗电特性。
The equipment is used to measure energy and time cost of the yellow ginger, and the best drying craft of the yellow ginger is summarized through orthogonal experiments in this paper.
提出了一种基于功率谱叠加的交织正交频分多址系统上行链路载波频偏和定时同步联合估计算法。
A joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.
本文提出了一种用于正交频分复用（OFDM）系统中由大功率放大器引起的非线性失真的有效的数字自适应补偿方法。
The paper presents an efficient digital adaptive method compensating for nonlinear distortions caused by a high-power amplifier (HPA) in orthogonal frequency division multiplexing(OFDM) system.
设计了一个超声频率、超声功率和辐射时间三因素四水平的正交实验，研究超声辐射对海水小球藻的生物效应。
In this study, a three factor and four level orthogonal experiment was designed to study the biologic effect of ultrasonic radiation on Marine Chlorella.
正交频分复用(OFDM)系统的一个主要缺点是峰均功率比(PAPR)过高。
One of the major drawbacks of the OFDM system is the high peak-to-average power ration (PAPR).
针对电力保护设备的安全性和可信赖性指标要求，研究了基于多正交窗分析的功率谱估计算法，并从计算量的角度出发对算法进行了改进。
Aiming at the security and credibility requirement of power protection equipment, power spectrum estimate algorithm which based on multiple orthonormal tapers is researched and modified in this paper.
通过正交试验，探讨了活性炭再生率与微波功率、微波辐照时间、活性炭的吸附量等因素的关系。
The relationships between regeneration efficiencies of activated carbon and those factors such as microwave power, microwave irradiation...
利用几何光学原理和轴外像差理论，设计一种应用于大功率CO_2激光陶瓷烧结实验的反射型正交双带式积分镜均束装置。
Using geometrical optics theory and off-axis aberration analysis, a set of crossed double strip integrators for high power CO_2 laser beam homogenizing has been designed.
方法采用正交设计，以超声提取时间、超声功率、固液比和提取温度为考察因素，优选了超声波提取海带中褐藻糖胶的最佳工艺。
Methods The orthogonal experiment was designed with ultrasound time, ultrasound power, solid-liquid ratio and extraction temperature as factors to optimize the extraction process of fucoidan.
功率放大器模组设计，使用负载牵引特性原理功率放大器被合并使用三分贝正交耦合器。
Power amplifier Modules were designed using Push-Pull BJT power amplifiers that were combined using 3db Quadrature couplers.
提出了研究正交频分复用(OFDM)信号通过高功率放大器产生的带内非线性畸变的一种新方法。
A new evaluation approach for the in-band nonlinear distortion, which is formed by the orthogonal frequency division multiplex (OFDM) signal passing through the high power amplifier, is presented.
提出了研究正交频分复用(OFDM)信号通过高功率放大器产生的带内非线性畸变的一种新方法。
A new evaluation approach for the in-band nonlinear distortion, which is formed by the orthogonal frequency division multiplex (OFDM) signal passing through the high power amplifier, is presented.
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