【摘 要】
：
In this article,we develop a new acquisition method for inter-satellite signal according to the characteristics of relative motion between satellites.Through analysis of the relative motion between tw
【机 构】
：
College of Information and Communication Engineering,Harbin Engineering Univers
【出 处】
：
2016年第十二届无线通信、网络技术与移动计算国际学术会议(WICOM2016)
论文部分内容阅读
In this article,we develop a new acquisition method for inter-satellite signal according to the characteristics of relative motion between satellites.Through analysis of the relative motion between two satellites,the feasibility analysis is performed.Then we define the search ranges of Doppler shift and delay of PRN code with the assistance of prior information.The new approach is proposed based on FFT-based acquisition algorithm.We simulate and analysis of the new method with the IGS precise ephemeris.The results show that the computation of the new method is greatly reduced,compared with the conventional algorithm.And its more suitable for inter-satellite signal acquisition.
其他文献
In this paper,we proposed an algorithm using Rényi entropy to distinguish the M-QAM signals.Without requiring any prior knowledge of signal parameters,the proposed method making Wigner-Ville distribut
The conventional methodology for designing QC-LDPC decoders is applied for fixed configurations used in wire-less standards,and the supported largest expansion factor Z(the parallelism of the layered
Large Scale Multiple Input Multiple Output(LS-MIMO)or massive MIMO depicts the use of huge number of antennas at the Base Stations(BS)to address small number of user terminals(UTs).Bandwidth Efficienc
Collaborative spectrum sensing can effectively improve the sensing performance in cognitive radio networks.However,the decision results significantly depend on the reliability of local detection.Signa
Along with the unbounded speedup and exponential growth of virtual queues requirement aiming for 100%throughput of multicast scheduling as the size of the high-speed switches scale,the issues of low t
Two-way relaying(TWR)transmission has been widely studied owing to its higher spectrum efficiency.Previous researches about TWR concentrate on the scenario in which the channel remains constant for on
To solve the problem of large steady state residual error of momentum constant modulus algorithm(CMA)blind equalization,a momentum CMA blind equalization con-trolled by energy steady state was propose
Aiming at earthquake prediction field,this paper puts forward a multi-expert multi-attribute uncertainty management algorithm based on DS evidence theory.Seismic signal has so much uncertainty that tr
Different from general cognitive wireless networks,there is no centralized scheduling and management infrastructure among heterogeneous cognitive networks.Multiple cells may operate in the same vicini
Narrowband jamming is a type of common blanket jam-ming in a satellite navigation system,also a jamming way having relatively great hazards.Aiming at narrowband jamming,this paper proposes a partial w