1. 1) Gu, G., Chandler, P., Schumacher, C., Sparks, A., and Pachter, M.: Optimum Cooperative UAV Sensing Based on Cramér-Rao Bound, Proceedings of the 2005 American Control Conference, Vol. 6, 2005, pp. 4090–4095.
2. 2) Lee, W., Bang, H., and Leeghim, H.: A Cooperative Guidance Law for Target Estimation by Multiple Unmanned Aerial Vehicles, Proc. Inst. Mech. Eng. Part G: J. Aerospace Eng., 225 (2011), pp. 1322–1335.
3. 3) Van Trees, H. L.: Detection, Estimation, and Modulation Theory, John Wiley & Sons, New York, 2004.
4. 4) Tichavsky, P., Muravchik, C. H., and Nehorai, A.: Posterior Cramér-Rao Bounds for Discrete-time Nonlinear Filtering, IEEE Trans. Signal Processing, 46 (1998), pp. 1386–1396.
5. 5) Rajagopalan, R., Niu, R., Mohan, C. K., Varshney, P. K., and Drozd, A. L.: Sensor Placement Algorithms for Target Localization in Sensor Networks, Proceedings of the IEEE Radar Conference, 2008, pp. 1–6.