Method and apparatus for TMBOC transmission with narrowband receivers
AssigneeSamsung Electronics Co., Ltd.
InventorGary Lennen
Life of this patent
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Abstract
A method and an apparatus are provided for improving a carrier to noise density ratio (CNO) of a matched filter. A signal is received at a signal register of the matched filter. A local code is received at a local code register and a nulling register of the matched filter. An adder tree of the matched filter correlates the signal register and the local code register with respect to the nulling register to obtain a correlation result. The nulling register prevents high frequency samples of the signal register from affecting the correlation result.
Claims20
A method for improving carrier to noise density ratio of a matched filter, the method comprising:
- receiving a signal at a signal register of the matched filter;
- receiving a local code at a local code register and a nulling register of the matched filter;
- and
- correlating, at an adder tree of the matched filter, the signal register and the local code register with respect to the nulling register to obtain a correlation result, wherein the nulling register prevents high frequency samples of the signal register from affecting the correlation result.
A matched filter for improving carrier to noise density ratio, the matched filter comprising:
- a signal register receiving a signal;
- a local code register receiving a local code;
- a nulling register receiving the local code;
- and
- an adder tree correlating the signal register and the local code register with respect to the nulling register to obtain a correlation result, wherein the nulling register prevents high frequency samples of the signal register from affecting the correlation result.
Dependencies are inferred from the claim text.