A method, comprising: receiving, by at least one processor of a system, test returns corresponding to a plurality of test signals that reflect from a single target, each of the test signals transmitted with a unique combination of signal power and target angle; sampling, by the at least one processor, the test returns over multiple test frames to generate non-coherently integrated test data indicating multiple frames of target responses for each signal power and target angle combination represented by the test signals; determining, based on the multiple test frames of target responses, a median power for each target angle at each one of a plurality of range bins; aggregating the test data into a plurality of sample vectors, each sample vector corresponding to a different target angle and indicating a combined target response at each of the range bins; generating multiple ordered statistics for each of the sample vectors, the multiple ordered statistics based on the combined target response at each of the range bins from that sample vector; determining a ratio between two ordered statistics from the multiple ordered statistics for each of the sample vectors; determining a desired quantile for each of the sample vectors to define an expected target response at each range bin of that sample vector, the desired quantile for each sample vector determined based in part on each combined target response from that sample vector; generating, based on the ratio and the desired quantile for each of the sample vectors, an empirically fit data set that maps possible ordered statistic ratios to desired quantiles for multiple combinations of target angles and range bins captured by the sample vectors; and configuring a radar system to use the data set to select a desired quantile for evaluating whether a target response of radar data, for a given target angle and range bin, corresponds to the expected target response for that combination of target angle and range bin or to possible noise. receiving, by at least one processor of a system, test returns corresponding to a plurality of test signals that reflect from a single target, each of the test signals transmitted with a unique combination of signal power and target angle; sampling, by the at least one processor, the test returns over multiple test frames to generate non-coherently integrated test data indicating multiple frames of target responses for each signal power and target angle combination represented by the test signals; determining, based on the multiple test frames of target responses, a median power for each target angle at each one of a plurality of range bins; aggregating the test data into a plurality of sample vectors, each sample vector corresponding to a different target angle and indicating a combined target response at each of the range bins; generating multiple ordered statistics for each of the sample vectors, the multiple ordered statistics based on the combined target response at each of the range bins from that sample vector; determining a ratio between two ordered statistics from the multiple ordered statistics for each of the sample vectors; determining a desired quantile for each of the sample vectors to define an expected target response at each range bin of that sample vector, the desired quantile for each sample vector determined based in part on each combined target response from that sample vector; generating, based on the ratio and the desired quantile for each of the sample vectors, an empirically fit data set that maps possible ordered statistic ratios to desired quantiles for multiple combinations of target angles and range bins captured by the sample vectors; and configuring a radar system to use the data set to select a desired quantile for evaluating whether a target response of radar data, for a given target angle and range bin, corresponds to the expected target response for that combination of target angle and range bin or to possible noise.