Secure pulse compression coding system
阅读：269发布：2023-05-21
专利汇可以提供Secure pulse compression coding system专利检索，专利查询，专利分析的服务。并且A pulse compression coding system comprising a transmitter providing first and second frequency swept signals of coextensive range and opposite sweep sense, each angle modulated in accordance with the amplitude and frequency of respective sinusoidal modulating signals for producing various carrier and sideband components, and a receiver including pulse compression filter means connected to the output of first and second mixers which respectively retain and invert the sweep sense of the received angle modulated signals whereby a pulse representative of each angle modulated component of the frequency swept signals is provided at the output of the filter means.，下面是Secure pulse compression coding system专利的具体信息内容。
1. A pulse compression coding system comprising a transmitter and a receiver; said transmitter comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal, a source of second sinusoidal modulating signal, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, means for transmitting the angle modulated first and second carrier oscillations; said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means, the received carrier oscillations and the sense-inverted carrier oscillations being applied to said pulse compression filter means.
2. A pulse compression coding system comprising a transmitter and a receiver; said transmitter comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal of controllable amplitude and frequency, a source of second sinusoidal modulating signal of controllable amplitude and frequency, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, linear means for simultaNeously transmitting the angle modulated first and second carrier oscillations; said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means, the received carrier oscillations and the sense-inverted carrier oscillations being applied to said pulse compression filter means.
3. A pulse compression coding system comprising a transmitter and a receiver; said transmitter comprising a source of first linearly frequency swept carrier oscillations, a source of second linearly frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal of controllable amplitude and frequency, a source of second sinusoidal modulating signal of controllable amplitude and frequency, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, linear means for simultaneously transmitting the angle modulated first and second carrier oscillations; said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means having a linear signal time delay versus frequency characteristic whereby received signal components are delayed by amounts linearly related to the frequencies thereof, the received carrier oscillations and the sense-inverted carrier oscillations being applied to said pulse compression filter means.
4. Transmitting means comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal, a source of second sinusoidal modulating signal, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, and means for transmitting the angle modulated first and second carrier oscillations.
5. Transmitting means comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal of controllable amplitude and frequency, a source of second sinusoidal modulating signal of controllable amplitude and frequency, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, and linear means for simultaneously transmitting the angle modulated first and second carrier oscillations.
6. Receiving means comprising means for receiving first and second angle modulated frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means, the received carrier oscillations and the sense-inverted carrier oscillations being applied to said pulse compression filter means.
7. Receiving means comprising means for receiving first and second angle modulated linearly frequency swept carRier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means having a linear signal time delay versus frequency characteristic whereby received components are delayed by amounts linearly related to the frequencies thereof, the received carrier oscillations and the sense-inverted carrier oscillations being applied said pulse compression filter means.
8. Receiving means comprising means for receiving first and second angle modulated frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, a first pulse compression filter, and a second pulse compression filter having substantially the same frequency versus delay characteristic as that of said first filter, the received carrier oscillations being applied to said first filter and the sense-inverted carrier oscillations being applied to said second filter.
9. Receiving means comprising means for receiving first and second angle modulated frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, means for inverting the frequency sense of both received carrier oscillations, means for additively combining the received oscillations and the sense-inverted oscillations, and a pulse compression filter, the combined oscillations being applied to said pulse compression filter.
10. Receiving means comprising means for receiving first and second angle modulated frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the carrier frequency sweep of said first oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, a signal summing circuit, means for applying the received carrier oscillations and the sense-inverted carrier oscillations to said summing circuit, said means for applying including signal delay means for delaying one of the received oscillations and the sense-inverted oscillations relative to the other, and a pulse compression filter, the output of said summing circuit being connected to the input of said pulse compression filter.
11. A pulse compression coding system comprising a transmitter and a receiver; said transmitter comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal, a source of second sinusoidal modulating signal, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, means for transmitting the angle modulated first and second carrier oscillations, said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, a first pulse compression filter, and a second pulse compression filter having substantially the same frequency versus delay characteristic as that of said first signal, the received carrier oscillations being applied to said first filter and the sense-inverted carrier oscillations being applied to said second filter.
12. A pulse compression coding sYstem comprising a transmitter and a receiver; said transmitter comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal, a source of second sinusoidal modulating signal, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, means for transmitting the angle modulated first and second carrier oscillations, said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, a signal summing circuit, means for applying the received carrier oscillations and the sense-inverted carrier oscillations to said summing circuit, said means for applying including signal delay means for delaying one of said received oscillations and said sense-inverted oscillations relative to the other, and a pulse compression filter, the output of said summing circuit being connected to the input of said pulse compression filter.
13. A pulse compression coding system comprising a transmitter and a receiver; said transmitter comprising a source of first frequency swept carrier oscillations, a source of second frequency swept carrier oscillations, the sense of the carrier frequency sweep of said second oscillations being opposite to the sense of the carrier frequency sweep of said first oscillations, a source of first sinusoidal modulating signal, a source of second sinusoidal modulating signal, first means for angle modulating said first oscillations with said first sinusoidal signal, second means for angle modulating said second oscillations with said second sinusoidal signal, linear means for simultaneously transmitting the angle modulated first and second carrier oscillations, said receiver comprising means for receiving the transmitted carrier oscillations, means for inverting the frequency sweep sense of both received carrier oscillations, and pulse compression filter means, the received carrier oscillations and the sense-inverted carrier oscillations being applied to said pulse compression filter means.
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