The article mainly research how to reduce the signal peak to average power ratio (PAPR).
研究降低信号峰均功率比问题。
One of the key techniques is to reduce the peak-to-average power ratio (PAPR) of the OFDM-CPM system.
降低OFDM - CPM系统中的峰值平均功率比(PAPR)是关键技术之一。
The methods to lower the peak-to-average power ratio (PAPR) of OFDM system are researched in the essay.
本文着重研究了降低OFDM系统峰均功率比的方法。
Its main disadvantages are sensitivity to synchronization errors and high peak-to-average power ratio (PAPR).
它的主要缺点是对频率同步比较敏感，并且峰值平均功率比（PAPR）过高。
A new method is proposed to reduce the peak-to-average power ratio of orthogonal frequency division multiplexing system.
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。
The OFDM system has a major disadvantage that high peak to average power ratio (PAPR) can cause nonlinear distortion in the high power amplifier (HPA).
OFDM系统的一个主要缺陷就是峰平比过高引起的高功率放大器(HPA)的非线性失真。
For the high Peak-to-Average Power Ratio (PAPR) problem existing in OFDM based MC-CDMA system uplink, this paper proposes a new system scheme as a solution to PAPR.
针对MC - CDMA系统的上行链路存在的峰均功率比问题，提出了一种降低峰均功率比的新的系统解决方案。
One of the major drawbacks of OFDM system is that the OFDM signal of the transmitter can have high peak-to-average power ratio (PAPR), which limits OFDM's wide applications.
但是OFDM系统的一个主要缺点就是发送端的传输信号具有较大的峰值平均功率比(PAPR)，这限制了OFDM技术的广泛应用。
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.
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。
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.
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。
The paper first introduces the selected mapping method for the reduction of the peak-to-average power ratio of OFDM signals, and a method for improving SLM using m-sequence is put forward.
在研究用选择性映射降法降低OFDM系统峰均功率比的基础上，提出了用m序列对SLM方法进行改进。
Channelization code management can increase the throughput, decrease the blocking probability of call setup requests, and reduce the signal Peak to Average Power Ratio (PAPR) in 3g systems.
合理的信道化码资源管理策略设计可以提高3g系统的吞吐量、降低用户的呼叫阻塞率和降低信号的峰平功率比。
The ratio of peak and average power in multi carrier system is much larger than that in single carrier system, and may grow unboundedly as the number of subcarriers grows to infinity.
多载波信号的峰值平均功率比远远大于单载波系统，而且峰平比随着子载波个数无限增长。
Load factor the load factor is the ratio of the average load to the generator set power rating.
负荷系数负荷系数指的是机组的平均负荷与额定功率之间的比率。
To maintain the constant average optical power and extiction ratio, the temperature compensation loop and automatic power control loop are incorporated in this chip.
为了保持工作中的稳定平均输出功率和恒定消光比，采用了温度补偿电路和自动功率控制电路。
The principal drawback of the OFDM systems is that the Peak-to-Average envelope power Ratio (PAR) of its signals may be very high. A high PAR may cause many problems in system design.
OFDM的一个主要缺点是峰均功率比特别高，而高的峰均比会对系统的设计带来很多问题。
Extinction ratio is ratio of logic "1" average optical power to logic "0" average optical power under the worst reflection and complete modulation condition.
消光比是指在最坏反射条件时，全调制条件下，逻辑“1”平均光功率与逻辑“0”平均光功率的比值。
Power meters are often considered for mobile-telephone production testing, because they can quickly measure peak power, average power, and peak-to-average ratio.
功率计经常用于手机生产测试，因为它能快速的测量峰值功率，平均功率，峰均比。
The maximal detection range increases with the reducing duty ratio of the drive current when the transmitted average power is constant.
在平均功率不变的情况下，可以通过减小激励电流的占空比来增加最大探测距离。
The maximal detection range increases with the reducing duty ratio of the drive current when the transmitted average power is constant.
在平均功率不变的情况下，可以通过减小激励电流的占空比来增加最大探测距离。
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