On the Frequency-Domain Properties of Savitzky-Golay Filters

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09-08-2010

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On the Frequency-Domain Properties of Savitzky-Golay Filters

HPL-2010-109 On the Frequency-Domain Properties of Savitzky-Golay Filters - Schafer, Ronald W.
Keyword(s): Savitzky-Golay filter, least-squares polynomial approximation, smoothing
Abstract: This paper is concerned with the frequency-domain properties of the so called Savitzky-Golay lowpass filters, which are based on the principle of local least-squares fitting of a polynomial. A summary of the important frequency-domain properties is given along with an empirically-derived formula for ...
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uhd_cal_tx_iq_balance

uhd_cal_tx_iq_balance(1)					   User Commands					  uhd_cal_tx_iq_balance(1)

NAME

       uhd_cal_tx_iq_balance - Generate TX IQ Balance Calibration Table

DESCRIPTION

       The  Universal  Software Radio Peripheral Hardware Drivers handle calibration information. This application sets up Transmitter calibration
       for a daughterboard installed on the USRP. Because it also uses the receive side of the daughterboard, this application only handles trans-
       ceiver daughterboards.

   USRP Generate TX IQ Balance Calibration Table Allowed options:
       --help help message

       --verbose
	      enable some verbose

       --args arg
	      device address args [default = ""]

       --tx_wave_freq arg (=507123)
	      Transmit wave frequency in Hz

       --tx_wave_ampl arg (=0.69999999999999996)
	      Transmit wave amplitude in counts

       --rx_offset arg (=934400)
	      RX LO offset from the TX LO in Hz

       --freq_start arg
	      Frequency start in Hz (do not specify for default)

       --freq_stop arg
	      Frequency stop in Hz (do not specify for default)

       --freq_step arg (=7300000)
	      Step size for LO sweep in Hz

       --nsamps arg (=10000)
	      Samples per data capture

       This application measures leakage between RX and TX on an XCVR daughterboard to self-calibrate.

SEE ALSO

       uhd_cal_rx_iq_balance(1)  uhd_cal_tx_dc_offset(1)

UHD
								    March 2012						  uhd_cal_tx_iq_balance(1)

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