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1. What's the advantage and disadvantage between the two modes.
In per-frame mode, the DC is likely to be estimated only once during the entire run. Typically, a pilot frame of chirps is used to estimate the DC in a paramset with DCEST_RESET_MODE 3. Once the Accumulator is populated with this data, the actual paramsets are configured with DCEST_RESET_MODE set as 0. By doing so, the DC estimation paramset and operation can be skipped which will save cycles to the HWA (DC subtraction only performed with values held in the accumulators).
2. Is the power consumption of the two modes the same?
Per-frame DC estimation will have reduced power consumption when compared with the per-chirp estimation due to the absence of the estimation operation in the subsequent frames.
