The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
With fixed emitted waveforms, traditional radars could not achieve optimal performance when the target and environment change. Cognitive radar can apperceive changing information outside, feed back to the transmitter intelligently, and then adjust waveforms to achieve better performance. Therefore, cognitive radar can fit the fast changing environment of modern battlefield better than the traditional...
Orthogonal Frequency-Division Multiplexing (OFDM) phase-coded pulse is a wideband signal, of which the range resolution is inversely proportional to the bandwidth. However, it is a challenge to synthesize large bandwidth for OFDM phase-coded pulse since wide instantaneous bandwidth and high sampling rate requirements. To solve this problem, this paper proposes a new radar signal called OFDM phase-coded...
It is beneficial for the recognition and classification of targets to obtain geometrical and motional parameters simultaneously. This paper proposes a new method to estimate parameters of target with precession based on combined feature, which is generated by Doppler feature and high range resolution feature of target from a new radar-OFDM radar. Expanded Hough transform (EHT) is employed to establish...
A new iterative channel estimation scheme for V-BLAST MIMO-OFDM systems is proposed in this paper. The channel estimation consists of two parts. Firstly, we use pilot-symbol-aided (PSA) method to interpolate the channel, and get the initial channel estimation of the systems. Then, with Turbo iterative decoding, we feedback the information bits to the channel estimator and the EM algorithm is used...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.