A sequence of binary characters recorded at the end of each block on phaseencoded magnetic tape , for the purpose of synchronization when reading backward 在相位编码磁带上,记录在每个数据块末尾的一个二进制字符序列,在倒读时起同步作用。
To solve the problem of higher range sidelobe of phase - coded radar , the method of removing big power signals with fft _ ifft is presented in this paper 针对相位编码雷达距离旁瓣较高的问题,本文提出了fft _ ifft法去除大功率信号来抑制距离旁瓣。
For it has many unique advantages , pseudo - noise linear m - sequence binary phased coded cw signal is widely used in the new generation air defense systems 伪随机m序列相位编码连续波信号体制由于其固有的优点,在新一代地空制导雷达中得到了广泛的应用。
In this paper , firstly , radar pulse compression is introduced briefly , summarize three primary pulse compression signals : lfm , nlfm , pcm 本文首先对雷达脉冲压缩的原理作了简要的介绍,进一步详细分析了应用最广泛的线性调频信号,并简要介绍了非线性调频信号和相位编码信号。
Thus in this paper , a novel double encryption technology is presented . it can not only encrypt data with double phase codes , but also do it with wavelength 因此,本文提出了一种新的双重加密光全息存储技术,它不仅能对信息进行相位加密,而且还能对信息进行波长双随机相位编码。
This chapter introduces one technique which based on encrypting the access of storage data , this can be done by coding the phase of reference beams by use of orthogonal - phase - code 介绍了一种基于对接入加密数据通道进行加密的方法,即对参考光的相位进行正交相位编码; 4 .双随机相位编码加密光存储。
As a new kind of high - resolution signal , multicarrier phase coded radar signal has drawn attention due to a lot of advantage , such as perfect autocorrelation , flexible designing and easy processing 多载频相位编码信号作为一种新型的高距离分辨信号以其信号特性优良,参数设计灵活,处理简单越来越引起人们的关注。
High - accuracy miniature ct and a / d modulation are adopted to realize high - accuracy property ; method of phase encoding is presented and hardware is selected to realize low power - consumption property 采用微型高精度ct和a / d调制实现系统的高精度要求,采取硬件措施并提出一种相位编码方法实现高压侧电子电路的低功耗要求。
Large time - band product signals such as linear frequency modulation signals ( lfm ) , nonlinear frequency modulation signals ( nlfm ) , phase coded signals and so on are one of key technologies for pulse compression radar systems 具有大时宽带宽积的信号,如线性调频信号、非线性调频信号、相位编码信号等是雷达应用脉冲压缩技术的关键之一。
Because of using spread spectrum technique , phase - coded radar has good anti - jamming capability and low probability of intercept property . so more and more attention has been paid to the research on it for military and civil application 相位编码雷达采用扩频技术使其具有良好的抗干扰能力和低截获概率特性,因此在军民两用方面其研究日益受到人们的关注。