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科研机构
西安交通大学 [5]
长春光学精密机械与物... [1]
福州大学 [1]
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会议论文 [7]
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Waveform design of UNB modulation and performance analysis
会议论文
作者:
Duan, Aoqin
;
Du, Qinghe
;
Sun, Bo
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  |  
浏览/下载:7/0
  |  
提交时间:2019/11/19
Bandwidth restrictions
CMDF
DFAM
Optimization problems
Performance analysis
Ultra narrow band
Ultra narrow bands (UNB)
Wireless communication network
Design and test of a RadOptic detector optimized for pulsed MeV gamma rays
会议论文
作者:
Peng, Bodong
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  |  
浏览/下载:6/0
  |  
提交时间:2019/11/19
Bulk semiconductors
Design and tests
High temporal resolution
Interferometer method
Narrow bandwidth
Photon absorptions
Recombination time
Refractive index changes
Performance analysis of M-ary DCSK System over Narrow Band Power-Line Communications
会议论文
作者:
Zheng, Mingyang
;
Huang, Tingting
;
Wang, Lin
;
Chen, Pingping
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  |  
浏览/下载:4/0
  |  
提交时间:2019/11/21
Bandwidth efficiencynarrow band Power-line communications (NPLC)
M-DCSK
Bandwidth efficiency
DCSK
narrow band Power-line communications (NPLC)
Bandwidth enhancement for Planar Inverted F Antenna
会议论文
作者:
Lim, Eng Gee
;
Wang, Zhao
;
Li, Xiang
;
Man, Ka Lok
;
Zhang, Nan
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  |  
浏览/下载:4/0
  |  
提交时间:2019/12/02
Additional costs
Bandwidth enhancement
Commercial applications
Dual Band
Dual-band systems
Narrow bandwidth
Planar inverted-F antenna
Wireless devices
ISAR imaging of ship target based on LMSF signal
会议论文
作者:
Zhang, Long
;
Si, Dong Sen
;
He, Wei
;
Xing, Meng Dao
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  |  
浏览/下载:1/0
  |  
提交时间:2019/12/18
Coherent processing
Effective imaging
HRRP
Narrow bandwidth
Real data processing
Stepped frequency
Sub-pulse
Translational motions
A high-accuracy parameter estimation algorithm for jointless Frequency-shift track circuit (EI CONFERENCE)
会议论文
ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China
Jin Y.
;
Zheng X.
;
Ding T.
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浏览/下载:13/0
  |  
提交时间:2013/03/25
FSK (Frequency Shift keying) signal
which has advantages of narrow-bandwidth
strong anti-interference ability
long transmission distance and so on
is used in jointless Frequency-shift track circuit to send different kinds of control signals. However
as FSK is non-linearly modulated
parameter estimation with high accuracy is hard to realize. Based on the spectrum analysis complement with time-frequency distribution
a highaccuracy FSK signal parameter estimation algorithm is put forward in this paper. According to the signal characteristics
under-sampling and ZFFT are used to improve the accuracy of spectrum analysis
and the base frequency resolution meets system requirement of 0.02Hz. Wigner-Ville distribution has an excellent time-frequency concentration while serious cross-term interference at the same time. Through the design of kernel function
the cross-terms are almost suppressed and the upper/down side frequency resolution meets the system requirement of 0.2Hz. The effectivities of all the methods mentioned above have been proved by MATLAB simulation
which pave a solid way for the development of high-accuracy FSK signal parameter estimation devices. 2008 IEEE.
1.331μm narrow-bandwidth light source based on polymer micro-blazed grating
会议论文
作者:
Wang, Hairong
;
Gao, Xianni
;
Sun, Guoliang
;
Zhao, Yulong
;
Jiang, Zhuangde
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  |  
浏览/下载:2/0
  |  
提交时间:2019/12/18
micro-blazed grating
narrow-bandwidth
replication
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