Joseph Cali

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PURPOSE Methicillin-resistant Staphylococcus aureus (MRSA) in perianal abscesses represents an underrecognized condition. It is unclear whether these abscesses differ in presentation or other characteristics from their non-MRSA counterparts. METHODS Patients diagnosed with perianal abscess, who underwent incision and drainage between January 2003 and(More)
A single-chip X-band chirp radar transceiver with direct digital synthesis (DDS) for chirp generation is presented. The radar chip, including receiver, transmitter, quadrature DDS, phase-locked loop (PLL) and analog to digital converter (ADC), has been implemented in a 0.13μm BiCMOS technology. The stretch processing technique is employed to(More)
A quadrature 650 MHz direct digital frequency synthesizer (DDFS) with linear phase and frequency modulation capabilities is realized in a 130 nm BiCMOS process. The DDFS supports stretch processing pulse compression for a single chip radar transceiver (RoC). The design features a partial dynamic rotation (PDR) Cordinate Rotation DIgital Computer (CORDIC)(More)
This paper presents an X-band chirp radar transceiver with bandwidth reduction for range detection. The radar transceiver includes a super-heterodyne receiver including an ADC, a direct-digital synthesizer (DDS) based transmitter and a phase-locked loop (PLL) synthesizer. In a modified Weaver architecture, the down-converted baseband signal is further mixed(More)