1. A method for scaling values in a real-time computation system, the method comprising: receiving a first data comprising a first plurality of estimates of noise variance values; determining, by a scaling factor computation circuit, a first scaling factor based on a smallest one of the first plurality of estimates of noise variance values; receiving a second data after receiving the first data, wherein the second data comprises a second plurality of estimates of noise variance value; and performing in parallel: computing, by a computation circuit, output data based on the first scaling factor and the second data using a ratio of (i) the smallest one of the first plurality of estimates of noise variance values to (ii) one of the second plurality of estimates of noise variance values, wherein computing the output data comprises computing, in real time, parameters for the second data based on the first scaling factor associated with the first data, and determining a second scaling factor based on the second data.