ID |
原文 |
译文 |
16325 |
此外,现有方法很难达到高阶及超高阶的信息传输,而提出的方法可实现调制阶数大于15的超高阶信息传输,从而为高效扩频通信应用提供可借鉴技术。 |
In addition, the existing methodsare difficult to achieve high-order and ultra-high-order information transmission, while the proposed methodcan achieve ultra-high-order information transmission with modulation order greater than 15, which providesreference technology for the efficient spread spectrum communication applications. |
16326 |
为解决传统相关延迟键控(CDSK)混沌通信系统存在的误码(BER)性能差的问题,该文提出一种基于施密特正交化的降噪多载波相关延迟键控(NR-MC-CDSK)混沌通信系统。 |
In order to solve the shortcomings of high Bit Error Rate (BER) in traditional Correlation DelayShift Keying (CDSK) chaotic communication system, a Noise Reduction Multi-Carrier Correlated Delay ShiftKeying (NR-MC-CDSK) chaotic communication system based on Schmidt orthogonalization is proposed. |
16327 |
在发送端,利用施密特正交化算法产生N组完全正交的混沌载波,并复制P次作为参考信号,与N个信息信号叠加进行传输,并利用多载波技术,复用每帧信号传输MN个用户信息。 |
At thetransmitter, Schmidt orthogonalization algorithm is used to generate N completely orthogonal chaotic signalswhich are copied P times as reference signals. N information signals are added up for transmission in each groupand multi-carrier is used to transmit MN user information per frame. |
16328 |
在接收端,将信号经匹配滤波器解调,然后通过滑动平均滤波器降噪,并进行相关解调。 |
At the receiver, the signal is demodulated by a matched filter, then the signal is averaged by a moving average filter to suppress the noise and demodulated by correlation. |
16329 |
推导了系统在加性高斯白噪声(AWGN)信道和多径Rayleigh衰落信道中的BER公式并进行了仿真分析。 |
The BER formula of the system in Additive White Gaussian Noise (AWGN)channel and multipath Rayleigh fading channel are derived and simulated. |
16330 |
结果表明系统的BER性能优于众多多载波混沌通信系统,数据传输速率也相较CDSK系统有明显提升, |
The results show that the BERperformance of the system is better than that of many multi-carrier chaotic communication systems and thedata transmission rate is improved obviously compared with CDSK system. |
16331 |
为该系统在实际通信系统中的应用提供了理论依据,并显示了较强的应用价值。 |
Theoretical basis for the future application of the system to practical communication systems is provided in the paper and shows strong feasibilities in future engineering application. |
16332 |
间歇采样转发干扰(ISRJ)是基于欠采样原理的新型雷达相干干扰技术,能够形成密集假目标干扰。 |
Interrupted-Sampling Repeater Jamming (ISRJ) is an advanced radar coherent interference based onthe principle of under-sampling method, and achieves a train of false targets. |
16333 |
该文针对抗间歇采样转发干扰问题,提出一种雷达发射波形和非匹配滤波联合设计的抗干扰方法。 |
In this paper, a joint transmittedwaveform and mismatched filter design method focus on suppressing the ISRJ is proposed. |
16334 |
首先,以发射信号脉冲压缩积分旁瓣能量和干扰信号非匹配滤波输出积分能量为目标函数,综合考虑发射信号的幅度约束,建立了间歇采样转发干扰抑制的数学优化模型。 |
Firstly, themathematical optimization model is established by minimizing the transmitted signal pulse compressionintegrated sidelobe level and jamming signal mismatched filter output integrated level under the constraint ofconstant modulus waveform. |