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The ATRIUM^TM is a modular, programmable platform developed at SRI to support research in the areas of communications and signal processing and provide unique capabilities to support our other work.

The ATRIUM^TM itself is a base card for processing baseband signals using existing or custom FPGA and/or DSP firmware. The ATRIUM^TM may be configured to transmit or receive, or to generate or capture and process test signals. The analog front end of the ATRIUM^TM resides on a modular mezzanine card structure, allowing for optimum hardware design for specific applications without a loss of generality for the platform.

The ATRIUM^TM operates in a commercial, off-the-shelf CompactPCI chassis. Standard embedded controllers offer a variety of processors and operating systems, and typically include all the standard interfaces of a desktop PC or workstation (Ethernet, parallel and serial ports, keyboard, monitor, and mouse).

Features:

• Standard 3Ux4T CompactPCI card (occupies single slot)
• FPGA and DSP resources for baseband digital signal processing
• Tunable on-board clock generator (up to 70 MHz)
• 2 MB on-board SRAM
• Quadrature digital modulation at baseband
• Modular expansion capability provided by mezzanine slots (RF front end, speical functions (e.g., ASICs for forward error correction or vocoder), etc.
• Independently selectable sampling frequency, carrier frequency, and symbol frequency

Existing Mezzanines:

Applications:

• Generation of pre-calculated quadrature signals (e.g., GPS C/A code, IS-95)
• Capture of RF signals for post-processing
• Real-time transmission and/or reception of communications signals