A Global Positioning System ("GPS") independent navigation system ("GINS") for a self-guided aerial vehicle ("SAV") (200, 500, 600, 700, 800) having a housing, wherein the housing has an outer surface, a length, a front end, and a longitudinal axis along the length of the housing, the GINS comprising: a first optical sensor located along the outer surface of the housing and directed at a first angle with respect to the longitudinal axis; a second optical sensor located along the outer surface of the housing and directed at a second angle with respect to the longitudinal axis; a third optical sensor located along the outer surface of the housing and directed at a third angle away from the outer surface; a storage unit configured to include a database of a plurality of reference images; and a comparator in signal communication with the first optical sensor, the second optical sensor, the third optical sensor, and the storage unit, wherein the first optical sensor is configured to acquire a first plurality of images of a first view with respect to the SAV when the SAV is in flight, wherein the second optical sensor is configured to acquire a second plurality of images of a second view with respect to the SAV when the SAV is in flight, wherein the third optical sensor is configured to acquire a third plurality of images of a third view with respect to the SAV when the SAV is in flight, and wherein the comparator is configured to compare the acquired first plurality of images, second plurality of images, and third plurality of images to the plurality of reference images in the database by performing scene correlation between the images, and, in response, produce position information utilized to guide the inflight SAV, wherein the first angle is approximately ninety degrees from the longitudinal axis, the SAV (200, 500, 600, 700, 800) is configured to travel in a direction that is collinear with the longitudinal axis of the housing, the first optical sensor is directed obliquely at a first oblique angle from a normal direction from the bottom of the SAV towards the ground below and at a right angle from the direction of travel, and the third optical sensor is directed obliquely at a second oblique angle from the normal direction from the bottom of the SAV towards the ground below and at a right angle from the direction of travel, wherein the first and second oblique angles are different. a first optical sensor located along the outer surface of the housing and directed at a first angle with respect to the longitudinal axis; a second optical sensor located along the outer surface of the housing and directed at a second angle with respect to the longitudinal axis; a third optical sensor located along the outer surface of the housing and directed at a third angle away from the outer surface; a storage unit configured to include a database of a plurality of reference images; and a comparator in signal communication with the first optical sensor, the second optical sensor, the third optical sensor, and the storage unit, wherein the first optical sensor is configured to acquire a first plurality of images of a first view with respect to the SAV when the SAV is in flight, wherein the second optical sensor is configured to acquire a second plurality of images of a second view with respect to the SAV when the SAV is in flight, wherein the third optical sensor is configured to acquire a third plurality of images of a third view with respect to the SAV when the SAV is in flight, and wherein the comparator is configured to compare the acquired first plurality of images, second plurality of images, and third plurality of images to the plurality of reference images in the database by performing scene correlation between the images, and, in response, produce position information utilized to guide the inflight SAV, wherein the first angle is approximately ninety degrees from the longitudinal axis, the SAV (200, 500, 600, 700, 800) is configured to travel in a direction that is collinear with the longitudinal axis of the housing, the first optical sensor is directed obliquely at a first oblique angle from a normal direction from the bottom of the SAV towards the ground below and at a right angle from the direction of travel, and the third optical sensor is directed obliquely at a second oblique angle from the normal direction from the bottom of the SAV towards the ground below and at a right angle from the direction of travel, wherein the first and second oblique angles are different.