算法利用伪随机数产生经过模型中心的直线，选取以直线与模型交点为球心的球形邻域作为嵌入对象，通过抖动调制邻域内顶点的重心来嵌入水印信息。
Firstly, a group of lines through the model center depending on a pseudorandom number is generated. Then the intersection points of these lines and the model's surface are chosen as embedding objects.
该文提出了一种利用随机多元码脉位调制(PPM)和脉间伪随机或随机二元序列相位调制(PM)相结合的混合波形设计方法。
The design method for hybrid waveforms utilizing ran-dom poly-cell code pulse position modulation (PPM) and pulse-to-pulse binary sequences phase modulation (PM) is introduced in this paper.
为使星载激光高度计实现高空间分辨率，提出了一种联合采用伪随机码调制光纤激光器和单光子计数的测距方法。
A method combining pseudorandom modulation of the fiber laser and single-photon counting is proposed to realize a high spatial resolution for the space-borne laser altimeter.
系统研究了伪随机编码理论，并硬件实现了瞬态激光伪随机编码调制及同步图像捕捉控制电路。
Systemically studied pseudo random coding theory, and designed the control circuits of pseudo random laser emission and image catching synchronously.
信号采用伪随机编码进行相位调制，相当于是用载频对伪随机码进行上变频。
Using pseudo random code to modulate the signal's phase equals to frequency up-conversion of the pseudo random code by the carrier frequency.
系统研究了伪随机编码理论，并硬件实现了瞬态激光伪随机编码调制及同步图像捕捉控制电路。
The pseudo random coding theory is studied, the control circuits of pseudo random laser modulating and image capturing synchronously are designed.
为了解决上述问题，我们研制了基于伪随机码调制的超声波测距。
In order to solve the above problems, we develop ultrasonic range-finder which is based on pseudorandom code.
被高速伪随机码调制的扩频信号，其伪随机码是具有随机编码信号特征的周期信号。
The spread spectrum (SS) signal is modulated by high-rate pseudo noise code, and belongs to typically periodic signal.
应用扩频原理，能大大改善水印嵌入的不可感知性。但由于采用扩频调制后，一个水印信息要用一个周期的伪随机序列调制，因此会增加嵌入的水印量。
Equally, spreading spectrum technology can improve the performance of watermark technology greatly, but it will increase the capacity of channel and the calculation of the algorithm as cost.
使用完全正交的伪随机码代替单脉冲信号对超声信号进行调制，以提高发送信号的抗干扰能力和系统的测距精度；
The pseudorandom code instead of single impulse is used for modulation to improve the capability of anti-jamming and precision of measuring range.
使用完全正交的伪随机码代替单脉冲信号对超声信号进行调制，以提高发送信号的抗干扰能力和系统的测距精度；
The pseudorandom code instead of single impulse is used for modulation to improve the capability of anti-jamming and precision of measuring range.
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