机构

• 长春光学精密机械与物... [1]
• 过程工程研究所 [1]
• 国家授时中心 [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2020 [2]
• 2008 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Study on Combustion Performance of Mn-Based Binary Carrier Catalyst for Ventilation Air Methane 期刊论文  OAI收割 CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY, 2020, 卷号: 22, 期号: 4, 页码: 26-34 作者:  Xu Xin;  Liu Wenge;  Qi Jian;  Yu Lei;  Han Jiaye   |  收藏  |  浏览/下载：93/0  |  提交时间：2021/03/29 binary carrier  catalytic combustion  VAM  Mn/La-Al2O3  Mn/Ce-Al2O3   北斗系统QMBOC信号无模糊多径抑制算法研究1 期刊论文  OAI收割 时间频率学报, 2020, 卷号: 43, 期号: 2, 页码: 153 作者:  王森;  王雪;  霍翔;  饶永南;  陈校非   |  收藏  |  浏览/下载：50/0  |  提交时间：2021/11/29 BDS quadrature multiplexed binary offset carrier (QMBOC) signal  Bump-Jump  dual estimate technology (DET)  narrow correlator technology  high resolution correlator (HRC)  unambiguous tracking  multipath mitigation  BDS正交复用二进制偏移载波(QMBOC)信号  Bump-Jump  双重估计(DET)  窄相关技术  高分辨率相关器(HRC)  无模糊跟踪  多径抑制   Correction method for detection of the frequencies of railway fsk signals (EI CONFERENCE) 会议论文  OAI收割 2008 9th International Conference on Signal Processing, ICSP 2008, October 26, 2008 - October 29, 2008, Beijing, China 作者:  Yu J. 收藏  |  浏览/下载：63/0  |  提交时间：2013/03/25 In order to acquire the information of railway binary frequency-shift keying signals  which include upper/down side frequencies and base low-frequency with high-accuracy  a novel frequency detection algorithm for France UM-71 system is proposed. Combining fast Fourier transform with the ratio correction method  the carrier frequency and the base frequency are obtained. Furthermore  the hardware consumption has been decreased. And it possesses the advantage of simple algorithm and fast operation speed. Comparing with the detection of the base frequency  the upper/down side frequency of railway signal is more difficult. Based on spectrum analysis and the spectrum correction  a new method  which adopts the sliding window  is put forward in this paper. The absolute differences between the upper side frequencies and the down side frequencies obtained are regarded as the criterion for judgment. Then the set of data  in which the maximum absolute value is  is to be the result of the upper/down side frequency. Because the sliding window will go through every stage when the upper/down side frequency changes  therefore  it is not sensitive enough to the position of data which need to be transformed. Using the method mentioned above  the experiment results show that the accuracy requirement of the side frequency is satisfied well. 2008 IEEE.