System for the radio transmission of guidance signals to self propelled bodies

Claim 2

In a system for the radio transmission of guidance signals to a self-propelled body, in combination at least one control center, provided with two transmitters continuously transmitting two different carrier frequencies, a pulse stage connected to simultaneously modulate both transmitters, adjusting means at each control center for frequency modulating both said transmitters with independent frequencies, said adjusting means comprising a hand-operated control stick operable in accordance with the observed deviations of said body to be guided from the line of sight to its target, two filters connecting said transmitters to a single circularly polarizing wide-band transmitting antenna both for transmitting the modulated carrier frequencies to the self-propelled body, said body having a dipole antenna, connected with a mixing circuit with nonlinear characteristic to form an intermediate frequency from the two carrier frequencies received, an intermediate-frequency amplifier tuned to said intermediate-frequency, a demodulator with a frequency selector connected for obtaining and separating the modulation frequencies, one amplifier and one discriminator for each modulation frequency for determining the guidance signals represented by the modulation frequencies.

Claim 3

In a system for the radio transmission of guidance signals to self-propelled bodies, in combination several control centers, said control centers having transmitter means for producing two carrier frequencies each of predetermined frequency spacing, adjusting means for producing a modulation frequency for each of said carrier frequencies, the frequencies of said modulation frequencies being variable independently of each other through said adjusting means according to the guidance signals to be transmitted, a generator for producing synchronizing pulses, time delay stages coordinated with each control center, said delay stages being all connected to the aforementioned generator and unlocking the individual control centers successively in the rhythm of the delay synchronizing pulses so that the transmitting pulses of neighboring control centers never occur simultaneously in the case of an equal pulse-repetition frequency of the synchronizing pulses, filters and wide-band antennas coordinated with and connected to each control center, in order to transmit the modulated carrier frequencies to the self-propelled bodies, said bodies having one antenna each connected with a mixing stage for receiving the modulated carrier frequencies to form the intermediate frequency corresponding to the above-mentioned spacing of the carrier frequencies, an intermediate-frequency amplifier tuned to the intermediate frequency a demodulator with a frequency selector connected for obtaining and separating the aforementioned modulation frequencies and one amplifier and frequency discriminator each, in order to obtain the guidance signals from said modulation frequencies, said guidance signals being given in the respective control center.

Claim 4

In a system for the radio transmission of guidance signals to self-propelled bodies, in combination several control centers, said control centers having transmitter means for producing two carrier frequencies each of predetermined frequency spacing, adjusting means for producing a modulation frequency for each of said carrier frequencies, the frequencies of said modulation frequencies being variable independently of each other through said adjusting means according to the guidance signals to be transmitted, a generator for producing synchronizing pulses, time delay stages coordinated with each control center, said delay stages being all connected to the aforementioned generator and unlocking the individual control centers successively in the rhythm of the delay synchronizing pulses so that the transmitting pulses of neighboring control centers never occur simultaneously in the case of an equal pulse-repetition frequency of the synchronizing pulses, filters and wide-band antennas coordinated with and connected to each control center, in order to transmit the modulated carrier frequencies to the self-propelled bodies, said bodies having one antenna each connected with a mixing stage for receiving the modulated carrier frequencies to form the intermediate frequency corresponding to the above-mentioned spacing of the carrier frequencies, an intermediate-frequency amplifier tuned to the intermediate frequency a demodulator with a frequency selector connected for obtaining and separating the aforementioned modulation frequencies and one amplifier and frequency discriminator each, in order to obtain the guidance signals from said modulation frequencies, said guidance signals being given in the respective control center.

Claim 5

In a system for the radio transmission of guidance signals to self-propelled Bodies, in combination several control centers, said centers having transmitter means producing two pulsed carrier frequencies of predetermined frequency spacing, adjusting means for producing a modulation frequency for each of said carrier frequencies, said modulation frequencies being variable independently of each other through said adjusting means according to the guidance signals to be transmitted , a generator for producing synchronizing pulses, time delay stages coordinated with each control center, said delay stages being all connected to the aforementioned generator and unlocking the individual control centers successively in the rhythm of the delayed synchronizing pulses so that the transmitting pulses of neighboring control centers never occur simultaneously in the case of an equal pulse-repetition frequency of the synchronizing pulses, filters and wide-band antennas coordinated with and connected to each control center, in order to transmit the modulated carrier frequencies to the self-propelled bodies, said bodies having one antenna each connected with a mixing stage for receiving the modulated carrier frequencies to form the intermediate frequencies corresponding to the above-mentioned frequency spacing, an intermediate frequency amplifier, a demodulator with a frequency selector connected for obtaining and separating the aforementioned two modulation frequencies, one amplifier and discriminator each, in order to obtain the guidance signals from said modulation frequencies, said guidance signals being given in the respective control center, as well as further means arranged in each body for producing blocking pulses for the receiver in accordance with the pulse-repetition frequency of the transmitter until shortly before and after the pulse transmission.

Claim 6

In a system for the radio transmission of guidance signals to self-propelled Bodies, in combination several control centers, said centers having transmitter means producing two pulsed carrier frequencies of predetermined frequency spacing, adjusting means for producing a modulation frequency for each of said carrier frequencies, said modulation frequencies being variable independently of each other through said adjusting means according to the guidance signals to be transmitted , a generator for producing synchronizing pulses, time delay stages coordinated with each control center, said delay stages being all connected to the aforementioned generator and unlocking the individual control centers successively in the rhythm of the delayed synchronizing pulses so that the transmitting pulses of neighboring control centers never occur simultaneously in the case of an equal pulse-repetition frequency of the synchronizing pulses, filters and wide-band antennas coordinated with and connected to each control center, in order to transmit the modulated carrier frequencies to the self-propelled bodies, said bodies having one antenna each connected with a mixing stage for receiving the modulated carrier frequencies to form the intermediate frequencies corresponding to the above-mentioned frequency spacing, an intermediate frequency amplifier, a demodulator with a frequency selector connected for obtaining and separating the aforementioned two modulation frequencies, one amplifier and discriminator each, in order to obtain the guidance signals from said modulation frequencies, said guidance signals being given in the respective control center, as well as further means arranged in each body for producing blocking pulses for the receiver in accordance with the pulse-repetition frequency of the transmitter until shortly before and after the pulse transmission.