ɪnðə klˈæsɪkəl ˌɛlkjˌuːdʒˈiː sˈɛɾɪŋ, ˌɪmplɪməntˈeɪʃən ʌvðɪ ˌɛlkjˌuːdʒˈiː kəntɹˈoʊlɚ mˈeɪ biː pɹˌɑːbəlmˈæɾɪk wɛn ðə dᵻmˈɛnʃən ʌvðə sˈɪstəm stˈeɪt ɪz lˈɑːɹdʒ.
In the classical LQG setting, implementation of the LQG controller may be problematic when the dimension of the system state is large.