Outline of the WINDS Onboard Switch for Regenerative Repeating

The asynchronous transfer mode (ATM) baseband subsystem (ABS) is a key on-board subsystem in the Wideband InterNetworking engineering test and Demonstration Satellite (WINDS). It is used for regenerative repeating as an onboard switch. The ABS demodulates and decodes 1.5-, 6-, 24-, 51-, and 155-Mbps data to ATM cells from an intermittent frequency (IF) band burst, switches the ATM cells based on their destination, and codes and modulates the ATM cells into a 155-Mbps IFband data burst. The ABS bread-board model (BBM) development has been completed, so CRL is now developing an ABS engineering model (EM) and will develop the ABS protoflight model (PFM) with the launch targeted for fiscal 2005. An outline of the ABS is given in this paper.