An asphalt density estimation system comprising: a measurement device configured to output a measurement signal; characterized in that it further comprises: a time synchronization unit utilizing time synchronous averaging configured to: sample the measurement signal to obtain a sampled measurement signal, identify a period in the time domain for the sampled measurement signal, identify a number of sampling points across the period, and identify periodic sampling points of the sampled measurement signal across a plurality of periods based on the identified period; a time synchronous averaging unit configured to construct a modified measurement signal in the time domain by: for at least one sampling point within the period, averaging a plurality of the periodic sampling points across periods to obtain an average periodic data point for the at least one sampling point, and constructing the modified measurement signal using the average periodic data point for the at least one sampling point; a density calculation unit configured to determine asphalt density values based on the modified measurement signal; and a display unit configured to display the determined asphalt density values. a measurement device configured to output a measurement signal; characterized in that it further comprises: a time synchronization unit utilizing time synchronous averaging configured to: sample the measurement signal to obtain a sampled measurement signal, identify a period in the time domain for the sampled measurement signal, identify a number of sampling points across the period, and identify periodic sampling points of the sampled measurement signal across a plurality of periods based on the identified period; a time synchronous averaging unit configured to construct a modified measurement signal in the time domain by: for at least one sampling point within the period, averaging a plurality of the periodic sampling points across periods to obtain an average periodic data point for the at least one sampling point, and constructing the modified measurement signal using the average periodic data point for the at least one sampling point; a density calculation unit configured to determine asphalt density values based on the modified measurement signal; and a display unit configured to display the determined asphalt density values. a time synchronization unit utilizing time synchronous averaging configured to: sample the measurement signal to obtain a sampled measurement signal, identify a period in the time domain for the sampled measurement signal, identify a number of sampling points across the period, and identify periodic sampling points of the sampled measurement signal across a plurality of periods based on the identified period; sample the measurement signal to obtain a sampled measurement signal, identify a period in the time domain for the sampled measurement signal, identify a number of sampling points across the period, and identify periodic sampling points of the sampled measurement signal across a plurality of periods based on the identified period; a time synchronous averaging unit configured to construct a modified measurement signal in the time domain by: for at least one sampling point within the period, averaging a plurality of the periodic sampling points across periods to obtain an average periodic data point for the at least one sampling point, and constructing the modified measurement signal using the average periodic data point for the at least one sampling point; for at least one sampling point within the period, averaging a plurality of the periodic sampling points across periods to obtain an average periodic data point for the at least one sampling point, and constructing the modified measurement signal using the average periodic data point for the at least one sampling point; a density calculation unit configured to determine asphalt density values based on the modified measurement signal; and a display unit configured to display the determined asphalt density values.