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Now create a Target Direct light in the viewport. （在前视窗中创建一盏目标平行灯。）
The target DNA segment was amplified by polymerase chain reaction.The PCR products were either used for direct sequence or ligated to PCR II vector for sequence. 用PCR方法将靶目标DNA扩增后直接用于序列测定或连接到PCR II载体后进行序列测定。
Set the Target Direct light to (0, 0) in X, Y, Z gizmo. 同样把平行灯也移动到（0，0），然后拖动x变换轴到如图位置。）
Spread spectrum has two distinct flavors: direct sequence and frequency hopping. 该技术有两个明显的变型：直接顺序与跳频。
A better method for direct sequence spread spectrum(DSSS) receiver to decrease the acquisition time is proposed. 提出一种减小直接序列扩频(DSSS)接收机信号捕获时间的改进方法。
This paper proposes a method for narrowband interference suppression in Direct Sequence Spread System(DS-SS). 该文提出一种基于门限估计的直接序列扩频(DS-SS)通信系统窄带干扰变换域抑制方法。
In the top viewport, create a Target Direct light that lights the cloud tunnel from the side . 6在顶视图中，创建一个目标平行灯，从侧面照亮云层隧道。）
Direct sequence code division multiple access( DS/ CDMA) as a technique for underwater acoustic networks is attracting attention from researchers. 直接序列码分多址(ds/DMA)一种受关注的水下声通信网多址接入方案。
This paper introduces GMSK into Direct Sequence Spread Spectrum(DSSS) communication system in order to obtain good performance of power spectrum. 本文将GMSK调制引入到直接序列扩频通信系统中,以期获得更好的功率谱利用率。
Create a Target Direct light in the top viewport, so it lights the teapot from behind, and place the target in the center of the teapot. 在顶视图中创建一个目标平行光，这样它从后方照亮了茶壶，将它的目标点放到茶壶的中心。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented. 摘要提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
Direct Sequence Spread Spectrum(DSSS)method is a major kind of anti-jamming technique which has been used extensively in communication fields. 直扩技术是一种在通信领域获得广泛应用的主要通信抗干扰技术。
Blind despread of multi-sequence Direct Sequence Spread Spectrum signals (tamed DSSS signals) with unknown spreading codes are discussed in this paper. 该文研究的是在未知扩频序列的情况下，实现多序列直扩信号(也称软扩频信号)的解扩。
The topic of this paper comes from the need of pricise carrier frequence measuring of Direct Sequence Spread Spectrum signal. 本论文课题来源于工程中要求对直接序列扩频信号载波频率进行精确测量的客观需求。
Also,802.11 maintained compatibility with the three most popular radio transmission types: direct sequence spread spectrum,frequency-hopping spread spectrum,and infrared. 802.;11也保持了与三种最流行的无线电传输方式（直接顺序扩频、跳频扩频和红外线）的兼容性。
When the strong tone interference exists in the Direct Sequence Spread Spec-trum(DSSS) system, the traditional linear prediction filter performs poorly. 在很强的单音干扰存在时,传统的线性预测滤波方法不能达到很好的抗干扰性能。
During drilling cylinder target directional well, the distance diagram is used to enhance controlling accuracy of wellbore trajectory. 在柱状靶区定向井施工中,运用随钻距离图有利于提高井眼轨迹的控制精度。
An adaptive evolutionary algorithm (EA) based multiuser detector for direct sequence code division multiple access (DS-CDMA) systems is presented in this paper. 摘要提出了一种新的自适应演化算法，用来解决码分多址系统中的多用户检测问题。
Target direction function work in dermic layer and hypodermal tissue layer without any hurt,avoiding the hydatid and compound pigmention ect dangerous. 靶向作用于真皮层、皮下层组织，表皮层无损伤，避免水泡和色素沉着等风险。
An efficient method that can blindly estimate and synchronize to PN sequence of direct sequence spread spectrum (DS-SS) signal quickly is presented in a non-cooperative context. 摘要在非协作信息侦测情况下，提出了一种实用的直接序列扩频(DS-SS)通信信号PN码序列的快速盲估计方法。