伪随机广谱复合频率信号合成技术与应用研究
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摘要
随着当今科技的发展,伪随机广谱复合频率信号源得到越来越广泛的应用。伪随机多频信号含有多种频率,它既具有某种随机波形的特征,又可重复产生,而且信号带宽可控,其能量集中在数个对数坐标上呈等间距分布的频率上,广泛应用于地球物理的电法勘探,无线电测量、机械在线故障检测及建筑物质量检测等方面。
针对近年来农业生产和粮食储备中日益严重的鼠害问题,提出了一种用伪随机广谱复合频率电流信号,通过电磁辐射器产生的伪随机无定向旋转电磁场驱灭鼠的新技术,设计了一套能在大、中型粮库中应用的伪随机无定向旋转电磁场辐射驱灭鼠系统。以改变传统药物灭鼠危害大,容易造成环境污染和危害其他生物的缺点以及其他驱灭鼠方法的局限性。
在设计中首先分析研究了伪随机多频信号理论,根据其特点得出了伪随机多频波在时间域上的表达式,在此基础上导出了伪随机多频信号的频率域表达式,对比普通方波频率和功率分配,证明了其能量分布集中在数个在对数坐标上呈等间距分布的频率上,并且其带宽可控,具有广谱的性质,该合成信号源较好的解决了多种频率同步发送时能量不平衡、相位不同步的技术难题,在许多的应用中都是非常理想的信号源。
综合生物实验和流行病学调查得到的数据,详细介绍了基于伪随机广谱复合频率信号合成技术的伪随机无定向电磁场驱灭鼠系统和极低频电磁辐射装置。
最后对整个系统进行了调试,通过实验验证了系统产生的复合频率的波形达到了很好的效果,在电磁辐射装置上也产生了达到要求的电磁场,整个系统已进行实际应用,该技术有着广泛的应用前景,值得进一步的研究。
Along with the development of technology, pseudo-random and broad-spectrum complex-frequency signals is getting more and more application. The pseudo-random multi-frequency signal containing several kinds of frequency signals, it has the characteristics of a random waveform and can be reproduced,then bandwidth can be controlled. Its energy concentrated in a few equidistant distribution frequency on logarithmic coordinates.The signal used widely in radio measurement,geophysical electrical prospecting, machinery online fault detection, building quality inspection and other aspects.
Considering the increasingly serious rodent problem in agricultural production and food reserves. This paper presents a compound with broad-spectrum pseudo-random frequency current signal, through the electromagnetic radiation generated Pseudo-random non-directional rotating electromagnetic field. And develop a set of extremely low frequency electromagnetic field radiation control system, that is applicable of large and medium-sized grain depot to expel and eradicate rodents. It could avoid the environment pollution and the negative impact to other organisms that traditional rodents control method bring on.
In the study of pseudo-random multi-frequency signal,based on characteristic of pseudo-random multi-frequency signal, the expression of pseudo-random multi-frequency signal in time domain and frequency domain is found. By comparing the spectrum and power distribution of pseudo-random multi-frequency signal and square wave, the advantage of pseudo-random multi-frequency signal as high work productivity, high power supply utilization ratio. It is a good solution to energy imbalance, phase synchronization when sending composite frequency pluse. It's a ideal wavefonn for many application.
Combination the measured data of biological experiment and epidemiological investigation, the pseudo-random astatic rotary electromagnetic field expelling and eradicating rodents based on Integration Technology of Broad-spectrum of pseudo-random multi-frequency signal presented in detail.
Finally, debugging the whole system. The experiments shows the synthesis signal arrive at good results. The radiation also generated the demanded electromagnetic field. The entire system has been carried out in practical applications, the technology has a wide application prospect, it is worth further study.
针对近年来农业生产和粮食储备中日益严重的鼠害问题,提出了一种用伪随机广谱复合频率电流信号,通过电磁辐射器产生的伪随机无定向旋转电磁场驱灭鼠的新技术,设计了一套能在大、中型粮库中应用的伪随机无定向旋转电磁场辐射驱灭鼠系统。以改变传统药物灭鼠危害大,容易造成环境污染和危害其他生物的缺点以及其他驱灭鼠方法的局限性。
在设计中首先分析研究了伪随机多频信号理论,根据其特点得出了伪随机多频波在时间域上的表达式,在此基础上导出了伪随机多频信号的频率域表达式,对比普通方波频率和功率分配,证明了其能量分布集中在数个在对数坐标上呈等间距分布的频率上,并且其带宽可控,具有广谱的性质,该合成信号源较好的解决了多种频率同步发送时能量不平衡、相位不同步的技术难题,在许多的应用中都是非常理想的信号源。
综合生物实验和流行病学调查得到的数据,详细介绍了基于伪随机广谱复合频率信号合成技术的伪随机无定向电磁场驱灭鼠系统和极低频电磁辐射装置。
最后对整个系统进行了调试,通过实验验证了系统产生的复合频率的波形达到了很好的效果,在电磁辐射装置上也产生了达到要求的电磁场,整个系统已进行实际应用,该技术有着广泛的应用前景,值得进一步的研究。
Along with the development of technology, pseudo-random and broad-spectrum complex-frequency signals is getting more and more application. The pseudo-random multi-frequency signal containing several kinds of frequency signals, it has the characteristics of a random waveform and can be reproduced,then bandwidth can be controlled. Its energy concentrated in a few equidistant distribution frequency on logarithmic coordinates.The signal used widely in radio measurement,geophysical electrical prospecting, machinery online fault detection, building quality inspection and other aspects.
Considering the increasingly serious rodent problem in agricultural production and food reserves. This paper presents a compound with broad-spectrum pseudo-random frequency current signal, through the electromagnetic radiation generated Pseudo-random non-directional rotating electromagnetic field. And develop a set of extremely low frequency electromagnetic field radiation control system, that is applicable of large and medium-sized grain depot to expel and eradicate rodents. It could avoid the environment pollution and the negative impact to other organisms that traditional rodents control method bring on.
In the study of pseudo-random multi-frequency signal,based on characteristic of pseudo-random multi-frequency signal, the expression of pseudo-random multi-frequency signal in time domain and frequency domain is found. By comparing the spectrum and power distribution of pseudo-random multi-frequency signal and square wave, the advantage of pseudo-random multi-frequency signal as high work productivity, high power supply utilization ratio. It is a good solution to energy imbalance, phase synchronization when sending composite frequency pluse. It's a ideal wavefonn for many application.
Combination the measured data of biological experiment and epidemiological investigation, the pseudo-random astatic rotary electromagnetic field expelling and eradicating rodents based on Integration Technology of Broad-spectrum of pseudo-random multi-frequency signal presented in detail.
Finally, debugging the whole system. The experiments shows the synthesis signal arrive at good results. The radiation also generated the demanded electromagnetic field. The entire system has been carried out in practical applications, the technology has a wide application prospect, it is worth further study.
引文
[1]马新友.伪随机序列特性分析及其通用分析软件包实现:[电子科技大学硕士学位论文].成都:电子科技大学应用物理研究所,2001,28-30
[2]高军涛.伪随机序列的设计与分析研究:[西安电子科技大学博士学位论文].西安:西安电子科技大学通信工程学院,2006,25-26
[3]汤井田,公劲喆,罗维斌.基于CPLD的重复m序列伪随机信号发生器.工程地球物理学报,2008,5(2):141-142
[4]何继善.频率域电法的新进展.地球物理学进展,2007,22(4):1250-1251
[5]祝忠明,王绪本,张双狮.伪随机编码超宽带短脉冲的探测能力研究.强激光与离子束,2006,18(11):1883-1884
[6]李梅,魏文博,邓明.电法勘探中的伪随机序列.仪器仪表学报,2008,9(4):233-234
[7]康国军,房德斌,赵淑芬.多频电磁波测井物理模拟实验的方法技术.吉林大学学报(地球科学版),2002,32(4):382
[8]叶庆华.双频道激电和伪随机三频激电的三维正演数值模拟:[中南大学硕士学位论文].长沙:中南大学信息物理工程学院,2006,32-34
[9]张友山.多频复合波激电差相位频率简谱异常区分法.中南工业大学学报,1998, 29(2):103-106
[10]袁正午,汤井田.多频组合波相干检测研究.见:中国地球物理学会2001年年刊.昆明:云南科技出版社,2001:112
[11]石福升,林品荣.多频供电波形与合成技术研究.地质与勘探,2003,39(z1):143
[12]何继善.双频激电法.第一版.北京:高等教育出版社,2005,13-14
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[14]陈儒军.伪随机多频电磁法观测系统研究:[中南大学博士学位论文].长沙:中南大学信息物理工程学院,2003,28-37
[15]张友山,袁正午,穆间宏.多频组合波电法的信号相干检测同步方案.中南工业大学学报,2000,31(3):191
[16]曹学成,宁镭.极低频磁场生物效应的生物物理机制研究.山东农业大学学报(自然科学版),2007,38(3):403-406
[17]张长杰.电磁场及其生物效应.中华物理医学与康复杂志,2006,28(2):73-75
[18]刘艳艳.极低频电磁场生物效应的研究:[电子科技大学硕士论文].成都:电子科技大学生命科学与技术学院,2007,53
[19] Roy S,Noda Y, Eckert V,et al. The phorbol 12-myristate 13-acetate(PMA)-induced oxidative burst in rat peritoneal neutrophils is increased by a 0. 1 mT (60Hz)magnetic field. FEBS Letters,1995,376(3):164-166
[20] Canedo L,Cantu R G,Hernandez R J. Magnetic field exposure during gestation: pineal and cerebral cortex serotonin in the rat. International Journal of Developmental Neuroscience, 2003, 21(5): 263-266
[21] Simko M,Droste S, Kriehuber R,et al. Stimulation of phagocytosis and free radical production in murine macrtphages by 50Hz electromagenetic fields, European Journal of Cell Biology,2001,80(8):562-564
[22] Michael V. Hogana,Andrzej Wieraszkob.An increase in cAMP concentration in mouse hippocampal slices exposed to low-frequency and pulsed magnetic fields. Neuroscience Letters,2004,366(1):43-47.
[23]席晓莉,吴道澄,张健保等.极低频脉冲磁场对小鼠自由基及血液流变学的影响.中华物理医学与康复杂志,1999,21(3):185
[24]郭明霞,王明时,王学民等.脉冲磁场对大鼠记忆能力和海马神经递质的影响.中国生物医学工程学报,2002,21(2):179-181
[25]李平阳,冯建强,贺奇才等.极低频弱电磁场对大鼠学习记忆的影响.环境与健康杂志, 2004,21(3):143-146
[26] Hook G J, Spitz D R, Sim J E, et al. Evaluation of parameters of oxidative stress after in vitro exposure to FMCW and CDMA modulated radio frequency radiation fields. Radiat Res,2004,162(5):497-501
[27] Hoffmann K, Bagnrda F, Stevenson A F, et al. Electromagnetic exposure effects the hippocAMPal dentate cell proliferation in gerbils(Meriones unguiculatus). Indian J Exp Biol, 2001, 39:[J] 1220-1223
[28]赵坤,黄康全.极低频磁场的生物学效应.自然杂志,2002,24(6):311
[29] Liboff R.Electric-Field Ion Cyclotron Resonance.Bioelectromagnetics,1997, 18(1):85
[30] Blackman F,Benane S G,Elliott D J,et al.Influence of electromagnetic fields on the efflux of Calcium ions from brain tissue in vitro:a three-model analysis consistent with the frequency response up to 510Hz. Bioelectiomagnetics, 1988, 9(3):215
[31] Millar S E, Chamow S M, Baur A W,et al.Vaccination with a synthetic zona pellucida peptide produces long-term contraception in female mice. Science, 1989, 246(4932):935-936
[32]吴道澄,王多宁,席晓莉等.脉冲磁场对小鼠血液SOD活性及MDA含量的影响.生物医学工程学杂志,1999,16(3):359-361
[33]郝海虎.工频电磁场对骨骼间充质干细胞增殖、分化及胞浆内钙离子浓度的影响.中华物理医学与康复杂志,2007,29(4):217
[34]曹亚南,张燕,刘贇.极低频电磁场对小鼠雌性生殖和子代生长发育的影响.中华劳动卫生职业病杂志,2006,24(8):468-470
[35] Al-Akhras M A,Elbetieha A,Hasan M K,et al.Effects of extremely low frequency magnetic field on fertility of adult male and female rats. Bioelectromagnetics, 2001,22(5):340-344
[36] Lee J S,Ahn S S,Jung K C,et al. Effects of 60Hz electromagnetic field exposure on testicular germ cell apoptosis in mice. Asian Journal of Andrology, 2004, 6(1):29-34
[37] Wallcezek J,Shiu E C,Hahn G M. Incresease in radiation-induced HPRT gene mutation frequency after nonthermal exposure to nonionizing 60Hz electromagnetic fields. Radiation Research, 1999,151(4): 489-494
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[2]高军涛.伪随机序列的设计与分析研究:[西安电子科技大学博士学位论文].西安:西安电子科技大学通信工程学院,2006,25-26
[3]汤井田,公劲喆,罗维斌.基于CPLD的重复m序列伪随机信号发生器.工程地球物理学报,2008,5(2):141-142
[4]何继善.频率域电法的新进展.地球物理学进展,2007,22(4):1250-1251
[5]祝忠明,王绪本,张双狮.伪随机编码超宽带短脉冲的探测能力研究.强激光与离子束,2006,18(11):1883-1884
[6]李梅,魏文博,邓明.电法勘探中的伪随机序列.仪器仪表学报,2008,9(4):233-234
[7]康国军,房德斌,赵淑芬.多频电磁波测井物理模拟实验的方法技术.吉林大学学报(地球科学版),2002,32(4):382
[8]叶庆华.双频道激电和伪随机三频激电的三维正演数值模拟:[中南大学硕士学位论文].长沙:中南大学信息物理工程学院,2006,32-34
[9]张友山.多频复合波激电差相位频率简谱异常区分法.中南工业大学学报,1998, 29(2):103-106
[10]袁正午,汤井田.多频组合波相干检测研究.见:中国地球物理学会2001年年刊.昆明:云南科技出版社,2001:112
[11]石福升,林品荣.多频供电波形与合成技术研究.地质与勘探,2003,39(z1):143
[12]何继善.双频激电法.第一版.北京:高等教育出版社,2005,13-14
[13]何继善.伪随机三频电法研究.中国有色金属学报,1994,4(1):1-7
[14]陈儒军.伪随机多频电磁法观测系统研究:[中南大学博士学位论文].长沙:中南大学信息物理工程学院,2003,28-37
[15]张友山,袁正午,穆间宏.多频组合波电法的信号相干检测同步方案.中南工业大学学报,2000,31(3):191
[16]曹学成,宁镭.极低频磁场生物效应的生物物理机制研究.山东农业大学学报(自然科学版),2007,38(3):403-406
[17]张长杰.电磁场及其生物效应.中华物理医学与康复杂志,2006,28(2):73-75
[18]刘艳艳.极低频电磁场生物效应的研究:[电子科技大学硕士论文].成都:电子科技大学生命科学与技术学院,2007,53
[19] Roy S,Noda Y, Eckert V,et al. The phorbol 12-myristate 13-acetate(PMA)-induced oxidative burst in rat peritoneal neutrophils is increased by a 0. 1 mT (60Hz)magnetic field. FEBS Letters,1995,376(3):164-166
[20] Canedo L,Cantu R G,Hernandez R J. Magnetic field exposure during gestation: pineal and cerebral cortex serotonin in the rat. International Journal of Developmental Neuroscience, 2003, 21(5): 263-266
[21] Simko M,Droste S, Kriehuber R,et al. Stimulation of phagocytosis and free radical production in murine macrtphages by 50Hz electromagenetic fields, European Journal of Cell Biology,2001,80(8):562-564
[22] Michael V. Hogana,Andrzej Wieraszkob.An increase in cAMP concentration in mouse hippocampal slices exposed to low-frequency and pulsed magnetic fields. Neuroscience Letters,2004,366(1):43-47.
[23]席晓莉,吴道澄,张健保等.极低频脉冲磁场对小鼠自由基及血液流变学的影响.中华物理医学与康复杂志,1999,21(3):185
[24]郭明霞,王明时,王学民等.脉冲磁场对大鼠记忆能力和海马神经递质的影响.中国生物医学工程学报,2002,21(2):179-181
[25]李平阳,冯建强,贺奇才等.极低频弱电磁场对大鼠学习记忆的影响.环境与健康杂志, 2004,21(3):143-146
[26] Hook G J, Spitz D R, Sim J E, et al. Evaluation of parameters of oxidative stress after in vitro exposure to FMCW and CDMA modulated radio frequency radiation fields. Radiat Res,2004,162(5):497-501
[27] Hoffmann K, Bagnrda F, Stevenson A F, et al. Electromagnetic exposure effects the hippocAMPal dentate cell proliferation in gerbils(Meriones unguiculatus). Indian J Exp Biol, 2001, 39:[J] 1220-1223
[28]赵坤,黄康全.极低频磁场的生物学效应.自然杂志,2002,24(6):311
[29] Liboff R.Electric-Field Ion Cyclotron Resonance.Bioelectromagnetics,1997, 18(1):85
[30] Blackman F,Benane S G,Elliott D J,et al.Influence of electromagnetic fields on the efflux of Calcium ions from brain tissue in vitro:a three-model analysis consistent with the frequency response up to 510Hz. Bioelectiomagnetics, 1988, 9(3):215
[31] Millar S E, Chamow S M, Baur A W,et al.Vaccination with a synthetic zona pellucida peptide produces long-term contraception in female mice. Science, 1989, 246(4932):935-936
[32]吴道澄,王多宁,席晓莉等.脉冲磁场对小鼠血液SOD活性及MDA含量的影响.生物医学工程学杂志,1999,16(3):359-361
[33]郝海虎.工频电磁场对骨骼间充质干细胞增殖、分化及胞浆内钙离子浓度的影响.中华物理医学与康复杂志,2007,29(4):217
[34]曹亚南,张燕,刘贇.极低频电磁场对小鼠雌性生殖和子代生长发育的影响.中华劳动卫生职业病杂志,2006,24(8):468-470
[35] Al-Akhras M A,Elbetieha A,Hasan M K,et al.Effects of extremely low frequency magnetic field on fertility of adult male and female rats. Bioelectromagnetics, 2001,22(5):340-344
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