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US 6,091,765 AGranted
Reconfigurable radio system architecture
AssigneeHarris Corporation
InventorsAlfred W. Pietzold, III, Clifford Hessel, Louis M. Orsini, John E. Gorton, Christopher D. Mackey
Life of this patent
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Abstract
A system and method for providing a digital field configurable radio frequency communication system that can be configured into a transmitter, or a receiver, to function with a plurality of signaling schemes, such as, AM, AME, A3E, H3E, J3E, CW, SSB, M-PSK, QAM, ASK, angular modulation, including FM, PM, FSK, CMP, MSK, CPFSK etc. The system includes a non volatile memory that is adapted to receive and store instructions for configuring the system. A user selects the mode of operation and the signaling scheme, and instructions and software are downloaded from the memory into the system and configure the system as selected by the user.
Claims80
A field configurable radio frequency communications system comprising:
- a radio frequency unit having a transmitter section for receiving carrier based modulated digital signals for transmission, and having a receiver section for receiving carrier based modulated signals and outputting carrier based modulated digital signals;
- a configurable carrier based digital signal processing circuit, responsive to digital commands, for configuration in accordance to any of a plural communications signaling schemes to receive digital input signals for modulation as carrier based signals modulated digital signals to be supplied to the transmitter section, and for configuration in accordance to any of a plural communications signaling schemes to receive carrier based modulated digital signals from the receiver section for demodulation as digital signals;
- an input circuit adapted for receiving digital commands for selecting the transmitter and receiver modes of operation and for selecting the communications signaling scheme, and
- a control system, including at least one digital processor that is responsive to digital commands received by the input circuit, for processing digital commands to configure the digital signal processing circuit to modulate input digital signals as carrier based modulated digital signals in the transmitter mode of operation in accordance with the selected communications signaling scheme, and to demodulate carrier based modulated digital signals as digital signals in the receiver mode of operation in accordance with the selected communications signaling scheme.
1 more element
A field configurable radio frequency receiver system comprising:
- a radio frequency receiver for receiving radio frequency modulated signals and outputting intermediate frequency modulated digital signals;
- an input circuit for receiving digital signals for selecting the receiver mode of operation and signaling scheme to be employed, and
- a configurable intermediate frequency digital processing circuit responsive to digital signals for configuration to the selected receiver mode of operation and signaling scheme for demodulating the intermediate frequency modulated digital signals from the radio frequency receiver to digital signals, and
- a control system, including at least one digital signal processor that is responsive to digital signals received by the input circuit for configuring the intermediate frequency digital signal processing circuit for the selected receiver mode of operation and the selected signaling scheme.
1 more element
A field configurable radio frequency transmitter system comprising:
- a radio frequency transmitter for receiving intermediate frequency modulated digital signals and transmitting radio frequency modulated signals;
- an input circuit for receiving digital signals selecting the transmitter mode and signaling scheme to be employed, and
- a configurable intermediate frequency digital processing circuit responsive to digital signals for configuration to the selected transmitter mode of operation and signaling scheme to modulate digital input signals as intermediate frequency modulated digital signals for transmission, and
- a control system, including at least one digital signal processor that is responsive to digital signals received by the input circuit for configuring the intermediate frequency digital signal processing circuit for the selected transmitter mode of operation and the selected signaling scheme.
1 more element
A control system for a field configurable communications system including a radio frequency transceiver comprising:
- a digital intermediate frequency stage responsive to digital instructions to
- configure into plural receiver and transmitter modes of operation;
- an input circuit for receiving digital instructions for selecting the receiver and transmitter modes of operation;
- a control circuit responsive to digital instructions received by the input circuit to configure the digital intermediate frequency stage to function with the radio frequency transceiver in the selected receiver and transmitter modes of operation;
- wherein, the control circuit includes a memory for storing digital commands for configuring the radio frequency communications system for plural transmitter and receiver modes of the operation including plural signaling schemes, and
- the control circuit processes the digital commands to configure the digital intermediate frequency stage to function in the selected one of the plural transmitter and receiver modes and with the selected one of the plural signaling schemes.
3 more elements
A method of configuring a field configurable radio frequency communications systems including a memory, an input circuit for receiving commands for selecting the configuration of the system, a configurable digital intermediate frequency circuit coupled to apply or receive signals from a radio subsystem including a receiver and a transmitter, and a control system including at least one digital processor and an interconnect circuit for interconnection the memory, digital processor, and the intermediate frequency circuit, the method comprising:
- a first step of loading instructions in the memory for configuring the radio frequency communications system in a plurality of transmitter and receiver operating modes;
- a second step of enabling the digital signal processor to receive instructions from the input circuit selecting one of the plurality of transmitter and receiver operating modes;
- a third step of enabling the digital processor in response to instructions from the input circuit and commands from memory for operatively connecting to the configurable digital intermediate frequency circuit, and
- a fourth step of enabling the digital processor in response to instructions from the input circuit to transmit commands from the memory to configure the configurable digital intermediate frequency circuit to function in the selected mode of operation.
1 more element
A field configurable radio frequency communications system comprising:
- a radio frequency transceiver
- a configurable digital circuit operatively connected to the transceiver, responsive to digital signals for configuration to process signals to and from the transceiver;
- an input circuit for receiving digital data for configuring the radio frequency communications system for a plurality of modes of operation;
- memory means for storing the configuration data for the plurality of communications system configurations provided by the input circuit;
- selection means for selecting the configuration of the mode of operation of the radio frequency system, and
- control means, responsive to the selection means, for configuring the operation of the configurable digital circuit from the stored configuration data.
3 more elements
A field configurable radio frequency communications system comprising:
- a radio frequency unit having a radio frequency transmitter section for receiving digital signals for transmission, and having a radio frequency receiver section for outputting received signals in digital form;
- a memory for storing digital commands for configuring the radio frequency communications system for operation in the transmitter and receiver modes, and for storing digital commands for configuring the radio frequency communications system to operate with any of a plurality of communication signaling schemes;
- an input circuit for receiving instructions for selecting the transmitter and receiver modes of operation for the radio frequency communications system and for selecting which of the plurality of communications signaling scheme to be employed;
- a configurable digital processing circuit responsive to digital commands for configuration so as to receive input digital signals for transmission by the radio frequency transmitter and processing the input digital signals in accordance with the selected communications signaling scheme, and for configuration so as to receive the digital signals outputted by the radio frequency receiver section and processing the received digital signals in accordance with the selected communications signaling scheme, and
- a control system, responsive to instructions received by the input circuit and the commands in the memory for configuring the configurable digital processing circuit in accordance with the selected transmit and receive mode of operation and in accordance with the selected communication signaling scheme.
2 more elements
Dependencies are inferred from the claim text.