Correction: Mishra, A.; Li, C. A Review: Recent Progress in the Design and Development of Nonlinear Radars. Remote Sens. 2021, 13, 4982

There was an error in the original publication [1]. On page 9, works [44,45] were misquoted. There was an error in reporting the output power level and maximum detection range of the radar. This issue was pointed out by the authors of the articles [44,45]. We are grateful for their feedback.

A correction has been made to Section 4. Harmonic Radar System:

Replace

“Refs. [44,45] shows the implementation of a harmonic radar in the marine environment. The radar was implemented in stepped frequency continuous wave mode with an output power of ≈76 dBm in the S-/C-band. The radar was able to locate a passive target at a range of up to 750 m with a peak transmit power of 25 kW, and at about 5800 m for active tags.”

With

“Refs. [44,45] shows the implementation of a harmonic radar in the marine environment. The radar was implemented in stepped frequency continuous wave mode with an output power of ≈50 dBm in the S-/C-band. The radar was able to locate a passive target at a range of 825 m and with a 20% detection probability. The radar could also detect targets at 1020 m distance. The active tags could be measured up to 5800 m with a transmit power of 100 W.”

The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. The original publication has also been updated.