比特数

分析了全电视信号PCM编码色度副载波量化噪声，并讨论了量化噪声与取样频率fs和量化比特数n的关系。

This paper analyses colour subcarrier quantization noise in PCM coding of complete television singal . The relationship between quantization noise and sampling frequency ( f s ) as well as quantizing bit number ( n ) is discussed .

本文提出一种新颖盲水印算法，利用感知模型增加水印容量，根据DCT系数噪声门限大小决定嵌入比特数，噪声门限越大，嵌入比特数越多。

In this paper , a novel blind watermarking scheme has been proposed . The watermarking capacity has been obviously increased using perceptual model . The embedded bit number can be decided by calculating the noise threshold of DCT coefficients .

直扩数字接收机中AD量化比特数的确定

Decision of the length of AD quantization in DS digital receiver

结果表明，用该方法压缩后图像的字节数和每像素比特数等参数均好于JPEG算法；

The reconstruction approach of the compressed image was like that of the JPEG algorithm .

OFDM系统的动态资源分配主要是根据实时的信道状态信息，对发送功率、子载波和每个子载波传送的比特数进行自适应调配。

The dynamic resource allocation for OFDM systems mainly includes adaptive power allocation , adaptive sub-channel allocation and adaptive bit loading .

这些子类型的基本区别和命名的原因是磁盘上FAT机构目录项比特数的大小。

The basic difference in these FAT sub types , and the reason for the names , is the size , in bits , of the entries in the actual FAT structure on the disk .

研究了发射总功率和系统误码率上限不变时传输比特数最大化（RA）的自适应算法。

The method is introduced into rate adaptive ( RA ) algorithms aiming at maximization of data rate under the constraint of total transmit power and bit error rate .

其次，对基本矩阵进行SVD，按照编码比特数的要求由近似矩阵表示；

Then , the basic matrix is decomposed by SVD , which is represented by underlying matrix according to the requirement of bit rates ;

水印比特数与JPEG图像的小块数一致，因此在每个小块中仅需嵌入1比特水印，保证了良好的隐蔽性。

The bits of watermark are consistent to the blocks of JPEG image , so one bit is embedded into one block and good imperceptibility is guaranteed .

目标帧比特数最终由帧编码复杂度、帧间PSNR波动程度以及缓冲区状况共同决定。

The frame bit budget is finally decided by the frame coding complexity and inter-frame PSNR fluctuation , combined with the buffer status .

得出如下结论：在水印比特数、PSNR值不变的情况下，正交码码长的选择不影响水印检测误码率。

As a conclusion , keeping the length of watermark bits and PSNR constant , the choice of orthogonal spreading code does not influence the bit error rate of watermark .

存储在两个不同内容管理系统的一个文档可能由同一个应用程序创建，可能还有相同的比特数（例如，一个PDF文件）。

A document stored in two different content management systems might be created by the same application and , indeed , might have the same number of bits ( a PDF file , for example ) .

该系统有别于传统的ARQ系统，并不是将所有检测出错误的帧都要求重传，而是根据不同的业务需求（误码率要求），只要求重新传输误码比特数高于门限值的帧。

Different from the traditional ARQ systems , this approach does not require re-transmitting all erroneous frames . Instead , only certain frames , with more errors than the given threshold , are re-transmitted .

该算法在宏块行间，根据第一次RDO时各个宏块行所耗用比特数的百分比来分配比特数。考虑到基于ρ域源模型的H。

The bit allocation of the proposed method is achieved according to the percentage of bit count of each macroblock slice in the first RDO .

实验结果表明，改进的编码算法在同等的PSNR下，能够有效减少图像小波变换编码后码流的比特数，减少运行时间，提高效率。

Through the experimental results show that the improved encoding algorithm can effectively reduce the code stream of bits which after image wavelet transformed , and the running time in the case of same PSNR .

本文以其译码算法中的迭代次数作为时间轴，译码输出作为状态变量，信噪比SNR及信息比特数N作为系统参数建立动力学模型，研究Turbo译码输出与迭代次数之间的关系。

This paper establishes a nonlinear dynamic system to analyze the relationship between Turbo decoding output and the number of iterations . Here , the number of iterations is taken as the time axis , decoding output as the state variable , SNR and information bits N as system parameters .

根据人类视觉特性，利用像素与其相邻像素间的像素差值，将图像分为平滑区、过渡区和边缘区；在这三个区域中分别采用不同比特数的LSB嵌入。

According to Human Visual System , the method divides an image into smooth areas , transition areas , and edged areas by the difference value of neighboring pixels . It uses different bits LSB substitution in three areas above .

仿真表明：对于BCH码，采用这种译码方法，在相同的码长和信息比特数的条件下，能够比一般的BCH译码方法纠正更多错误，而且译码电路相对简单，译码速度快。

The simulation results show that when the code bits and information bits are the same , this decoding method can correct more error bits than usual decoding methods . The decoding circuits are comparatively simpler and the decoding speeds are faster .

增加输入信号的比特数是提高单比特电子战接收机双信号动态范围的有效方法，当采用2比特量化时该动态范围可以增加5dB。

Its double signal dynamic range can be enhanced by increasing the input signal bit , for example , the dynamic range can be increased 5 dB by 2 bit A / D.

文中给出了AOFDM中的平均每个子载波上一个符号能传送的比特数及误比特率与调制方式切换门限之间的函数关系式。

The close forms of the number of bits that per-sub-carrier-symbol can transmit and the Bit-Error-Probability ( BER ) are given as the functions of the switching thresholds .

并设计了两级离散余弦变换的编码方案，采用该方案对逐帧变化的谱幅度参数进行自适应动态量化编码，大大减少了编码比特数，实现了2.4kb/s及其以下速率的多带激励语音编码器。

The two stage discrete cosine transformation coding scheme is designed . Using this scheme spectral magnitude parameters changing frame-by-frame are quantized adaptively and the coded bit rate of speech is largely reduced .

在信道编码部分，该算法依据译码端反馈的信道状态参数实时调整待传输的比特数和RCPC编码速率，从而实现收发交互的不等纠错保护（IUEP）。

Furthermore , sender can adaptive adjust the transmitting bit rates and RCPC coding rates according to the feedback parameter , which is from receiver and reflects the current status of error-prone channel .

数值仿真中表明，为降低系统波束成形算法的计算复杂度，反馈比特数最好选择在8bits范围之内。

The numerical simulation showed that the best choice for the number of feedback bits within the scope of the 8 bits in the case of reducing the computational complexity in this paper .

转换比特数越大，性能价格比越高。

The bigger the bit number , the higher the ratio .

信息编码系统中每个字符的比特数。

The number of bits in each character of an information coding system .

详细讨论离散多音频技术的原理，以及在动态分配子信道比特数时能达到的信道容量；

The principle and capability of discrete multitone ( DMT ) technology are detailed .

分析表明，量化比特数越大，均方误差越小；

The analysis indicates that the more quantification bit number , the less RMS error ;

针对不同的区域分配不同的比特数。

Allocate different bitrate to different region .

实验结果表明：在保持重建图像质量的前提下，每像素的比特数可压缩至0.075。

Experimental results show that the subjective quality of reconstructed pictures are excellent at 0.075 bit-per-pei .

该算法首先根据每个小波块所含能量的多少和到每个小波块实际编码所用的比特数，给其分配不同的码率；

Different bit rates are allocated to wavelet blocks according to energy the wavelet blocks include .