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Електронний архів Житомирського державного технологічного університету
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| Title |
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The Method of Digital Correlation Radio Tracking |
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| Creator |
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| Description |
?????? ????????? ????????????? ????????????????? ???????? ?? ???????????????? ?? ???? ???? ???????????? ? ???????????????? ??????? ??????? ???????????, ??????? ? ??????????????, ????????????, ???????????????, ????????????????. ??????????????????? ????????? ????? ??????????, ??????????? ? ???????? ???????? ? ????????? ??????????? ?????????, ??????????? ????????????? ??????? ? ????? ????? ??????????? ?? ??????????? ? ???? ????????????, ??? ?????????? ?? ?????? ?????? ???????. ????????? ???????????? ???????????? ? ??????? ????? ?? ?????????? ?? ?????????? ???????? ???????. ????? ????? ?????????? ?? ???? ?? ??????? ?? ????? ????????? ??????? ? ????? ??????? ??????? ?????? ????????? ?? ??????? ?????? ?? ???????????? ????????? ???????? ?????????? ?????, ?? ???????? ??????? ??? ??????? ??????? ???????? ???????????? ???????????? ?? ????????? ????????. ???? ?????????? ???????????? ????????? ??????? ??????? ?????? ? ????????????. ????? ???????????? ??????? ????????? ??????? ??????? ?? ?????????? ???????? ??????????? ????????? ????????, ????????? ?????? ??????? ????????. ????? ?????????? ????? ???????????? ??????? ??????? ???????? ?????? ???????? ?????????? ???? ???????????? ????????? ?? ???????????, ?? ???????? ??????????? ????????? ??????????? ???????? ???????, ????????? ????? ?????????? ????????????? ??????? ??????? ????????. ???? ???????? ????? ?????????? ????????????? ??????? ??????? ???????? ?????? ????? ?? ??????? ???? ?????? ??????????. ????? ?????????? ???????????? ?????? ? ?????????? ????????????? ??????? ??????? ???????? ?? ???????????? ?? ??????? ????????? ???????, ???????? ?????? ??????? ????????. ???? ?????? ??????? ???????? ???????????? ?????? ???????? ?????????? ???? ??????????? ???????????? ????????? ?? ???????????, ?? ????? ??????????? ????????? ??????????? ???????? ???????. ????? ?????????? ???? ??????? ?????????????? ???????? ????????????? ????????? ?????? ? ???????????? ?? ???????? ???? ??????????? ????????? ???????? ????????????? ??????? ??????? ????????. ???? ?????????? ????? ???????????? ??????? ??????? ???????? ?????? ????????? ?? ?????????? ???? ??????????? ???????????? ????????? ????? ??????? ?????????????? ???????? ????????????? ????????? ?????? ? ???????????? ? ?????????? ???????? ?????????? ?? ?? ?????????? ???????? ?? ???????????, ?? ???????? ??????????? ????????? ??????????? ???????? ???????. ????? ????? ?????????? ???????????? ???????? ????????????? ????????? ?????? ? ????????????, ?? ?????????? ????????????? ???????? ???????? ???????????? ???????, ?? ???????? ???? ??????????? ????????? ???????? ?????? ????????????? ??????? ??????? ????????. ????? ?? ?????????? ????????????? ????????? ????????????? ????????? ?????? ? ???????????? ?? ? ??????????? ???????????? ?????????? ????? ?????????? ???????? ?? ??????? ???????????????????. ?????? ???????? ????????? ???????? ?????????????????.
The method of digital correlation radio tracking belongs to the sphere of radio electronics and it can be used in radio electronic means of various applications, namely, in radio navigation, radio location, radio astronomy, radio monitoring. Radio waves are described by two stable antennas with further selection which are placed in space. These antennas possess the coherent frequency conversions within the bandwidth and the amplification in two radio channels. The antennas are set to the operating frequency. The amplified radio signals are converted into digital representation with their further complex frequency spectrums determination. After, they are shifted by the frequency band from the bandwidth of the intermediate frequency to the operating frequency by adding the spectrum components of the frequency value shift to the frequency values. It is equal to the difference between the set operating frequency of radio channels tuning and the intermediate frequency. The inversion of the shifted spectrum signal of one radio channel is performed as the next step. Then the samples of the same frequencies are multiplied. These samples contain the frequencies of the direct and inverted complex shifted spectrums. The first product is obtained. The first converting of the first product comes next. It is performed by multiplying the spectral component argument by the coefficients. It is inversely pro rata to the values of the corresponding frequency samples. The first realization of the converted product of spectrums is obtained. The second realization of the first converted product of spectrums is formed by means of the shift at frequency of its first realization. The inversion of one of the realizations of the first product is performed. The samples of the same frequency are multiplied; the second spectrum product is formed. The second spectrum product is converted by multiplying the arguments of its complex spectrum components by the coefficients which are directly pro rata to the values of the corresponding frequency samples. The whole extreme value of the compensating parameter is determined. This parameter is one of the radio channels and acts as an argument of the total of complex frequency samples of the second converted spectrum product. The second converting of the first spectrum product is performed by adding its complex spectrum components of the whole extreme value of compensating parameter of a radio channel to the argument. The total arguments are formed and, further, they are multiplied by the coefficients which are inversely pro rata to the values of the corresponding frequency samples. The extreme value of the compensating parameter of one of the radio channels is determined. It corresponds to the maximum value of the mutual correlation function. It is performed as the argument of the total of complex frequency samples of the converted first spectrum product at the second time. The direction to the source of radio waves is determined by the obtained extreme value of the compensating parameter, as well as, by taking into consideration the space |
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| Date |
2016-07-05T08:43:13Z
2016-07-05T08:43:13Z 2014 |
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| Type |
Other
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| Identifier |
http://eztuir.ztu.edu.ua/123456789/4356
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| Language |
uk
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| Relation |
104208;
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| Publisher |
????
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