1. A method for estimating a channel experienced by a plurality of communication bursts transmitted substantially simultaneously, each burst having an assigned midamble, the method comprising: receiving a combined signal, the combined signal including a received version of each of the communication burst's midambles; processing the received combined signal to produce initial channel estimates; estimating noise of the received combined signal using the initial channel estimates; eliminating samples of the initial channel estimates not exceeding a first threshold producing processed channel estimates; detecting received midambles using the processed channel estimates; and using the detected midambles, processing the processed channel estimates to produce a channel estimate for each detected midamble.