| 空间域信号的采样方法 |
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| 引用本文： | 康宜华,杨叔子,卢文祥,杨克冲. 空间域信号的采样方法[J]. 华中科技大学学报(自然科学版), 1992, 0(Z1) |
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| 作者姓名： | 康宜华 杨叔子 卢文祥 杨克冲 |
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| 作者单位： | 华中理工大学机械工程一系(康宜华，杨叔子，卢文祥)，华中理工大学机械工程一系(杨克冲) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对空间域信号的采样特点,分析并讨论了空间域信号采样的误差来源和空间域信号采集通道设计的一些关键问题,提出了空间域信号的等空间间隔采样方法和等时间间隔采样方法.
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| 关 键 词： | 信号处理 时间域信号 空间域信号 采样 采样定理 |
A Sampling Method for Spatial Signals |
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| Kang Yihua Yang Shuzi Lu Wenxiang Yang Kechong. A Sampling Method for Spatial Signals[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1992, 0(Z1) |
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| Authors: | Kang Yihua Yang Shuzi Lu Wenxiang Yang Kechong |
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| Affiliation: | Kang Yihua Yang Shuzi Lu Wenxiang Yang Kechong |
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| Abstract: | In many engineering measurements, some signals, such as spatial signals, are the function of space. In general,spatial signals are converted into electric ones by sensors and will be processed subsequently for features required. The signals available will then become time-related. This paper is concerned with the nature of sampling of the signals in the spatial domain that are different from those in the time domain. An analysis is made on the source of sampling errors and a design method of spatial signal sampling channel is proposed. The e-qually spaced interval sampling method using a pulse generator to generate a regular spatial pulse to trigger off the signal sampling operation is described. The source of errors of this method and measures to reduce them are given. The principle and method for translating the equally timed interval sampling signal into an equally spaced interval are also discussed. The relation between the relative speed of sensor and accuracy of translation is analyzed. |
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| Keywords: | signal processing time domain signalsjspatial domain signals sampling sampling theory |
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