发明名称 Radio receiver and/or transmitter including a programmable equalizer
摘要 A radio receiver includes a low noise amplifier, a down conversion module, an analog to digital converter, and a digital demodulator. The low noise amplifier is operably coupled to amplify inbound radio frequency (RF) signals to produce amplified inbound RF signals. The down conversion module is operably coupled to convert the amplified inbound RF signals into low intermediate frequency (IF) signals. The analog to digital converter is operably coupled to convert the low IF signals into digital low IF signals. The digital demodulator is operably coupled to convert the digital low IF signals into inbound digital symbols and includes a baseband conversion module, a filtering module, a programmable equalizer, a CORDIC module, and a demodulation module. The baseband conversion module is operably coupled to convert the digital low IF signals into digital baseband signals. The filtering module is operably coupled to filter the digital baseband signals to produce filtered digital baseband signals. The programmable equalizer is operably coupled to equalize phase and frequency response of the filtered digital baseband signals such that the phase and frequency response of the filtered digital baseband signals approximates phase and frequency response of a square root raised cosine filter to produce adjusted digital baseband signals. The CORDIC module is operably coupled to produce phase and magnitude information from the adjusted digital baseband signals. The demodulation module is operably coupled to produce the inbound digital symbols from the phase and magnitude information.
申请公布号 US2006029171(A1) 申请公布日期 2006.02.09
申请号 US20040911934 申请日期 2004.08.05
申请人 JENSEN HENRIK T 发明人 JENSEN HENRIK T.
分类号 H04B1/10 主分类号 H04B1/10
代理机构 代理人
主权项
地址