The CV quantum communication has attracted wide interest due to the potential advantages such as high bit transmission rate.
连续变量量子通讯具有比特效率高等潜在优越性,所以引起了广泛的研究兴趣。
In order to decrease the Bit Error Rate (BER) of transmission information, this paper studies an adaptive power control algorithm for uplink against the power control module of TD-SCDMA system.
为了更好的降低系统传输信息的误比特率(BER),本文针对TD - SCDMA系统的功率控制模块,研究一种适用于反向链路的自适应功率控制算法。
Our research has showed that SPIHT performs better than JPEG while the underwater images are coded in low bit rate. SPIHT also has a good progressive transmission characteristic.
并指出基于小波变换的SPIHT编码算法具有对水下图像低比特率编码性能好、可以与纠错技术结合使用等特点。
But the data efficiency of STBC is restricted to orthogonal transmission and the bit error rate of BLAST is high due to the error propagation.
但由于空时分组码受正交条件限制,传输效率得不到提高,而BLAST系统存在差错传播制约着误码率的下降。
Optical time division multiplexing (OTDM) technology is one of the most promising way to achieve ultrahigh bit rate transmission.
光时分复用(OTDM)技术是实现超大容量传输的最有希望的途径之一。
So it is necessary to further study the characteristics of video and compression mechanism deeply and to achieve live transmission of videos at very low bit rate.
因此,有必要继续深入研究视频图像的特点与压缩机理,以实现甚低比特率下视频图像实时传输的目标。
Although the video compression technique has been investigated extensively and developed rapidly, it still can not meet the requirement of live transmission at very low bit rate.
虽然视频压缩技术在当今的信息时代中得到迅猛发展,但目前现有的视频压缩技术仍不能满足甚低比特率下实时传输视频图像的要求。
The transmission quality of DWDM system is affected by the damages from linear and nonlinear effects so the ratio of optical signal to noise is reduced and the bit error rate is increased.
DWDM系统的传输质量受到线性和非线性两类效应引起的损害影响,导致光信号噪声比下降,误码率增大。
The energy per bit of FM-DCSK is kept constant to increase the transmission rate. But the performance of CSK is yet better than that of FM-DCSK.
调频差分混沌键控(FM -DCSK)的比特能量是常数,可以提高传输速率,但和CS K相比较,性能上仍有差距。
The potential application of this technique includes low bit-rate video transmission, computer aided instruction, game design, virtual reality and so on.
其潜在的应用领域包括窄带视频传输、计算机辅助教学、游戏制作、虚拟现实等等。
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
针对双总线形、星形、环形和双环形四种光纤网络拓扑,比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
The test result shows that the bit synchronizing signals could be restored accurately by using the design method, which is appropriate for operation under the different transmission rate...
测试结果表明,该设计方法能比较准确地恢复位同步信号,并适合在不同的传输速率下工作。
But this scheme is obsessed with block effect in the instance of low bit rate transmission.
然而在低码率传输的情况下该方案受到“方块效应”和飞蚊噪声的困扰。
The temporal sub-sampling technique of the video sequence is very important for the video transmission in the low-bit-rate channel and the video storage in the limited storage space.
视频序列的时域亚采样对于低比特率信道上的视频传输和存储空间受限条件下的视频存储具有十分重要的意义。
The influences of length, dispersion index and attenuation index of transmission fiber and incident optical power on ber (bit error rate) and Q value of the system is analyzed.
仿真研究了传输信道和光功率对光码分多址系统性能的影响,分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。
Most visual communication applications use a fixed rate transmission channel, which means the encoder's output bit rate must be regulated to meet the transmission bandwidth.
大多数视频通信应用都使用固定的传输带宽,这意味着编码器的输出码流受到传输带宽的限制。
In addition, the spacing between the pulses in the start bit allows the receiver to measure the transmission rate; the rate does not need to be fixed in advance.
除此之外,也不必事先固定传输速率,因为接收器可透过起始位元内两脉冲之间的距离,测量出传输速率。
The dispersion managed pairs are applicable for large capacity, high bit-rate long-haul wavelength division multiplexing (WDM) transmission system without using dispersion compensation mode.
该色散管理光纤对可以在无需色散补偿模块的前提下应用于大容量高速率的长距离波分复用(WDM)系统。
The simulation results show that the proposed algorithm can reduce the overall transmission power further while the target transmission rate and bit error rate are met.
实验结果表明,所提出的空频二维自适应调制算法可以在保证系统目标传输速率和目标误比特率的前提下,进一步减小系统所需要的平均发射功率。
Multimedia mobile services afforded in the 4th generation wireless communication require high bit-rate transmission technology.
第四代无线通信中,多媒体移动服务需要高速率的传输机制。
The result is a multichannel audio signal having a significantly lower bit rate for efficient transmission or storage.
这样得到的多声道音频信号具有极大地降低的比特率,用于有效的发送或存储。
Experiments show that at low bit-rate of image sequence transmission, thus multi-reference frame search algorithm has some advantages in matching accuracy and speed of operation.
实验证明,在低码率序列图像传输中,此多参考帧搜索算法在匹配精度和运算速度方面都有一定的优越性。
The test result shows the penetration rate of the bit is closely related to the transmission ratio, cutter teeth structure, rock character and drilling parameters.
试验结果表明,钻头的机械钻速与传动比、齿面结构、岩石性质及钻井参数有密切的关联,为改进这两种钻头的设计提供了重要依据。
The result shows that this algorithm is better than that of constant bit rate distribution on the performance of error rate in the addition of reducing the transmission power of system.
结果表明,该算法在误码率性能上明显优于等比特分配算法,也减少了系统的传输功率。
With the advent of the digital age, users not only ask Internet for higher transmission bit rate and larger capacity, but also require multi-services more and more strongly.
随着数字时代的到来,用户不但要求互联网络具有更高速率和更大带宽,对网络多业务功能的需求也日益提高。
Orthogonal frequency-division multiplexing (OFDM) is an attractive transmission technique for high-bit-rate communication systems.
中文含义为正交频分复用,它是一种多载波调制技术。
Orthogonal frequency-division multiplexing (OFDM) is an attractive transmission technique for high-bit-rate communication systems.
中文含义为正交频分复用,它是一种多载波调制技术。
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