Autonomous navigation started in early phases of deep space exploration as a provision to achieve accuracy for planet/natural satellite targeting and approach, where radio tracking accuracies were low, as well as ephemeris data was not quite up to accuracy marks. AutoNav and OpNav were the initial systems used by DS1, New Millenium and Cassini among others.
These autonomous techniques employed a camera which would scan primary body w.r.t an inertial background of fixed stars. Basically, to find the position of the spacecraft. Since then, various autonomous systems have been developed.
Now, for orbit determination, total state (velocity and position vector in a reference frame) information is a prime necessity.
So, as far as I can tell, each of autonomous techniques, if employed for a deep space mission would require the support of Deep Space Networks for velocity determination. Is it so? Are there any other provisions(Methods, Geometrical or others) to determine velocity or any component of velocity autonomously on-board?