System for jamming wireless communications专利检索-干扰发射机信号处理专利检索查询-专利查询网

System for jamming wireless communications

阅读：145发布：2023-06-02

专利汇可以提供System for jamming wireless communications专利检索，专利查询，专利分析的服务。并且1. In a system for jamming wireless communications with the aid of a searching receiver for ascertaining senders which are engaged in the transmission of messages, a powerful jamming transmitter for radiating jamming signals on the waves of ascertained senders, whereby said receiver and transmitter are alternately operative to ascertain transmitting senders and to transmit jamming signals, respectively, which comprises means at the searching receiver for converting received frequency signals into lower frequency ranges, means for successively converting said lower frequency range signals into a plurality of individual ranges, means forming a group of frequency-analyzing channels, means for connecting said frequency-analyzing channel means to respective outputs of said plurality of individual ranges, whereby each individual range is searched for frequencies therein by the common group of frequency-analyzing channels, means operatively connected to said frequency-analyzing channel means responsive upon ascertainment of a signal thereby, to effect jamming transmission corresponding to the received frequency of such ascertained signal.，下面是System for jamming wireless communications专利的具体信息内容。

权利要求

1. In a system for jamming wireless communications with the aid of a searching receiver for ascertaining senders which are engaged in the transmission of messages, a powerful jamming transmitter for radiating jamming signals on the waves of ascertained senders, whereby said receiver and transmitter are alternately operative to ascertain transmitting senders and to transmit jamming signals, respectively, which comprises means at the searching receiver for converting received frequency signals into lower frequency ranges, means for successively converting said lower frequency range signals into a plurality of individual ranges, means forming a group of frequency-analyzing channels, means for connecting said frequency-analyzing channel means to respective outputs of said plurality of individual ranges, whereby each individual range is searched for frequencies therein by the common group of frequency-analyzing channels, means operatively connected to said frequency-analyzing channel means responsive upon ascertainment of a signal thereby, to effect jamming transmission corresponding to the received frequency of such ascertained signal.

2. A system according to claim 1, comprising means for controlling said frequency converting means, said channel connecting means and said transmission means to effect a searching during a searching interval, in step-by-step manner, within brief individual searching times corresponding to the switching-in instants of conversion frequencies, to ascertain transmitting senders, and effecting a jamming transmission only after completion of the searching of all individual ranges.

3. A system according to claim 1, comprising means for transmitting controlling said frequency converting means , said channel connecting means, and said transmission means to effect a transmission of jamming signals in ascertained channels after each individual searchIng interval, transmission of jamming signals being interrupted by subsequent searching intervals and being after such interruptions resumed in the corresponding channels including previously ascertained channels.

4. A system according to claim 1, wherein the channel connecting means is so constructed that individual searching intervals are successively effected with continuously rising conversion frequencies.

5. A system according to claim 1, wherein the channel connecting means is so constructed that individual searching intervals are effected with intermixed conversion frequencies.

6. A system according to claim 1, wherein each channel of said group of channels has a number of output circuits corresponding to the number of individual ranges, each output circuit being respectively allocated to an individual range and being synchronously operatively switched therewith.

7. A system according to claim 6, comprising impulse expander means operatively connected to said channel-forming means for holding output circuits, in which sender frequencies are ascertained, for the duration of one or more supervision periods for the entire range.

8. A system according to claim 1, wherein said first mentioned frequency converting means comprises a plurality of parallel connected frequency converters, corresponding in number to the number of individual searching times and operating with mutually different conversion frequencies, and means for respectively operatively connecting and disconnecting said converters in the rhythm of the individual searching times.

9. A system according to claim 1, wherein said transmission means is so constructed that the frequency range which is to be jammed is at the jamming transmitter subdivided into jamming frequency ranges with jamming channels corresponding to the same channel distribution as at the searching receiver.

10. A system according to claim 9, comprising means for obtaining the group of jamming channels at the jamming transmitter by frequency conversion from a channel with interference modulation.

11. A system according to claim 10, wherein the jamming channels are formed by upper and lower side bands appearing incident to the frequency conversion.

12. A system according to claim 11, comprising means for converting the group of jamming channels into jamming frequency ranges corresponding to individual ranges at the receiver side.

13. A system according to claim 12, comprising channel switches for operatively connecting the jamming channels, means for combining said channel switches in groups corresponding to the jamming frequency ranges, and means in the output circuits for operatively controlling said channel switches.

14. A system according to claim 13, wherein the conversion frequencies at the respective receiver- and transmitter terminal frequencies are synchronously wobbled by a frequency supplied by a common oscillator.

15. A system according to claim 14, wherein the channel connecting means is so constructed that individual search intervals are successively effected with continuously falling conversion frequencies.

16. A system according to claim 13, comprising means disposed in the manner of a crossbar arrangement for disposing said channel switches.

17. A system according to claim 16, wherein said crossbar arrangement is formed by a crossbar distributor which comprises, in one coordinate direction, longitudinal bars corresponding in number to the number of individual ranges, and in the other coordinate direction transverse bars corresponding in number to the number of jamming channels for the respective individual ranges, means for connecting said transverse bars with the jamming channels, said channel switches being operative for connecting each jamming channel with each longitudinal bar.

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System for jamming wireless communications

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