Patent ID: 7660671

Claim:
A method to determine a formation property using a synthesized response of a desired antenna array, comprising: providing a first antenna array and a second antenna array; transmitting a first signal from a first antenna array transmitter; receiving the first signal at two or more spaced apart first antenna array receivers; combining the received signals from the spaced apart first antenna array receivers to produce a first antenna array direct response at a desired point and a first antenna array derivative response at the desired point; transmitting a second signal from a second antenna array transmitter; receiving the second signal at two or more spaced apart second antenna array receivers; combining the received signals from the spaced apart second antenna array receivers to produce a second antenna array direct response at the desired point and a second antenna array derivative response at the desired point; synthesizing a response of the desired antenna array at the desired point using the direct responses and derivative responses of the first and second antenna arrays; and determining the formation property using the synthesized response.