ˌɛlkjˌuːˈɑːɹ kəntɹˈoʊlɚz pəzˈɛs ɪnhˈiəɹənt ɹoʊbˈʌstnəs wɪð ɡˌæɹəntˈiːd ɡˈeɪn ænd fˈeɪz mˈɑːɹdʒɪn, ænd ðeɪ ˈɔːlsoʊ ɑːɹ pˈɑːɹt ʌvðə səlˈuːʃən tə ðɪ ˌɛlkjˌuːdʒˈiː lˈɪnɪɹ kwɑːdɹˈæɾɪk ɡˈaʊʃən pɹˈɑːbləm.
LQR controllers possess inherent robustness with guaranteed gain and phase margin, and they also are part of the solution to the LQG (linear–quadratic–Gaussian) problem.