Table 4.
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SNR enhancement for 3-D TEM signals with different noise levels.

|${\rm{SNR\ }}( {{\rm{dB}}} )$| of entire signal|${\rm{SNR\ }}( {{\rm{dB}}} )$| of signal after 1 ms
ReceiverNoise levelBefore de-noisingAfter de-noisingBefore de-noisingAfter de-noising
P1Mild12.4638.65−11.2935.21
Medium11.3720.56−29.2323.55
Heavy−4.3425.36−62.7826.45
P2Mild13.8439.07−8.9325.65
Medium11.5223.98−24.6325.29
Heavy0.4135.61−37.0133.77
|${\rm{SNR\ }}( {{\rm{dB}}} )$| of entire signal|${\rm{SNR\ }}( {{\rm{dB}}} )$| of signal after 1 ms
ReceiverNoise levelBefore de-noisingAfter de-noisingBefore de-noisingAfter de-noising
P1Mild12.4638.65−11.2935.21
Medium11.3720.56−29.2323.55
Heavy−4.3425.36−62.7826.45
P2Mild13.8439.07−8.9325.65
Medium11.5223.98−24.6325.29
Heavy0.4135.61−37.0133.77
Table 4.
Open in new tab

SNR enhancement for 3-D TEM signals with different noise levels.

|${\rm{SNR\ }}( {{\rm{dB}}} )$| of entire signal|${\rm{SNR\ }}( {{\rm{dB}}} )$| of signal after 1 ms
ReceiverNoise levelBefore de-noisingAfter de-noisingBefore de-noisingAfter de-noising
P1Mild12.4638.65−11.2935.21
Medium11.3720.56−29.2323.55
Heavy−4.3425.36−62.7826.45
P2Mild13.8439.07−8.9325.65
Medium11.5223.98−24.6325.29
Heavy0.4135.61−37.0133.77
|${\rm{SNR\ }}( {{\rm{dB}}} )$| of entire signal|${\rm{SNR\ }}( {{\rm{dB}}} )$| of signal after 1 ms
ReceiverNoise levelBefore de-noisingAfter de-noisingBefore de-noisingAfter de-noising
P1Mild12.4638.65−11.2935.21
Medium11.3720.56−29.2323.55
Heavy−4.3425.36−62.7826.45
P2Mild13.8439.07−8.9325.65
Medium11.5223.98−24.6325.29
Heavy0.4135.61−37.0133.77
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