Not so. The table below shows that Doppler radar can only provide four of the many aerodynamic coefficients. The ARL Spark Range (or equivalent) is needed to get them all.
View attachment 1018844
Sorry, but while you may think that in the US, for years we have been getting much more data than that from radar tracks, along with some other techniques, without the use of spark ranges which we don't have. Otherwise, according to the papers you quote, we would not be able to produce fire control data let alone sixdof data which we do when needed.