Abstract: A method of locating a receiver in a navigation system comprising a constellation of satellites transmitting signals, includes the steps of: measuring pseudo-distances between the receiver and the satellites from the signals received from the satellites, measuring pseudo-speeds between the receiver and the satellites from signals received from the satellites, and computing the position of the receiver from the combination of measured pseudo-distances and pseudo-speeds. The position of the receiver is computed by minimizing the matrix of covariance of the measured pseudo-distances and pseudo-speeds. This provides an accurate position of the receiver in a simple manner, in particular for a constellation of satellites in low Earth orbit.