In most instances, the transmitted pulse is circularly polarized and the received pulse is measured in the same sense of polarization as the transmitted pulse (SC) and the opposite sense (OC).
ɪn mˈoʊst ˈɪnstənsᵻz, ðə tɹænsmˈɪɾᵻd pˈʌls ɪz sˈɜːkjʊlɚli pˈoʊlɚɹˌaɪzd ænd ðə ɹᵻsˈiːvd pˈʌls ɪz mˈɛʒɚd ɪnðə sˈeɪm sˈɛns ʌv pˌoʊlɚɹᵻzˈeɪʃən æz ðə tɹænsmˈɪɾᵻd pˈʌls ˌɛssˈiː ænd ðɪ ˈɑːpəzˌɪt sˈɛns ˌoʊsˈiː.