station to subscribers. In order to reduce the latency, the 5G NR introduces a scale-able or dynamic structure where the symbol length can change along with the slot length.These control signals 138 are provided, over respective lines 140 and 142 (FIG. Basically, they are more like UE specific RS and act like dmrs. This reduced transmission rate by transmitters mounted on non-moving vehicles reduces overall transmission traffic, thereby enabling a greater number of vehicles to be included in VLS 20 than might otherwise be possible. As an illustrative example, the decimal number 10,705,823 can be represented hexadecimally as "A35B9F". Also by way of example, relay stations 24, 26, and 28 are depicted in FIG. Signal correlators 190, 192 and 194 are configured for sorting out signals 120 which may overlap one another due to near-simultaneous, random transmissions from different transmitters 30, 32, 34, (etc.) and 40, 42 and 44 so that corresponding time-differences-of-arrival can be determined by tdoa processor. To enable separation of the relayed signals, each transmitter includes means for encoding a preestablished synchronization code ordbog into each transmitted signal, the synchroniazation code being the same for all transmitters. These benchmark RF signals are relayed along with RF signals from vehicle transmitters 30, 32, 34 (etc.) by relay stations 24, 26 and 28 to processing station. Preferably, but not necessarily, benchmark transmitters 40, 42 and 44 are constructed similarly to vehicle transmitters 30, 32 and 34 and in any event transmit similar RF signals. It is still further preferred that the vehicle location system includes at least one benchmark transmitter mounted at a known, fixed location relative to the geographical region covered by the system. However, in most instances involving land vehicles, appropriate radio communication receivers and transmitters are not already provided and the cost of adding such equipment must accordingly be borne by the vehicle location system as part of the overall system cost. In a similar manner, data correlations 214-218 identify and decode message codes (if any) encoded into the four bits of message symbol 126, and include such message information in output signal 244 to tdoa processor 164. Vehicle identification symbols 124 are similarly spread spectrum formatted, each being formed of 64 chips which are arranged in a specific pseudo-random manner of binary ones and zeros. Symbols 126 and 128 are similarly formatted. Known landmarks could always be relied up in determining positional locations on land; in unmapped or unfamiliar regions, ocean navigation apparatus and methods have been used. Single point gauging sensor for industry By smashing gold nuclei together at near-light speeds, physicists using Brookhaven National Laboratory's Relativistic Heavy Ion Collider (rhic) have recreated a short-lived state of hot, dense matter that existed microseconds after the Big Bang (June issue, page 26). Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. In the same manner, second correlator 192 operates on signals 120 received from second relay station 26 by receiver 186 and provides time-tagged, decoded signals to tdoa processor 164 over a bus 248 and third correlator 194 operates on signals 120 received from relay station. Assuming, by way of example, a nominal repetition rate of one signal 120 per minute per transmitter, it is evident that for signals having a length of 100 microseconds, 600,000 non-overlapping signals can be transmitted each minute. A unit of time sessun equal to one millionth of a second. Comprising the central processing station are means for separating the received, relayed signals from one another, especially when the incoming siganls are overlapping; means for encoding on the received signals the tinme of arrival at the processing station and means for determining from time differences. Three such benchmark transmitters are depicted in FIG. However, for more localized VLS's all or some of relay stations 24, 26 and 28 may be ground based, being, for example, installed in high mountain locations, atop tall buildings or on radio towers. Subsequent navigators had available chronographs, compasses, astrolabes and sextants by which to determine their approximate positions. Nevertheless, periodic updating of the vehicle location is still usually desirable to assure that the transmitter is properly functioning. The use of three relay stations 24, 26 and 28 has hereinabove been described, three such relay stations being sufficient to provide two dimensional, ground-level location information, as is usually satisfactory for ground vehicles. It will, of course, be understood that knowledge of the precise locations of relay stations 24, 26 and 28 relative to control station 22 is necessary to enable accurate determination of the locations of the vehicle transmitters 30, 32, 34 (etc.) relative to a preestablished.
Partnership Microseconds symbol
Description OF THE preferred embodiment, in accordance with the present invention. A shorter symbol duration causes an increase in subcarrier spacing. Signals 120 are preferably formatted by known spread spectrum techniques. Because of the frequent repetition of signal transmissions from each transmitter. Second and third and possibly a fourth elevated relay stations for receiving transmitted signals sandwiches from the vehiclemounted transmitters and for relaying such signals. With the sixteen possible combinations to determine which combination of bits speed is contained in the symbol. Comprising the vehicle locating system are a number of similar. Thus, the number of chips in synchronizing symbol 122 may be 168.
Translations, synonyms, statistics, grammar -.Microseconds synonyms, Microseconds pronunciation, Microseconds translation, English dictionary definition of Microseconds.One millionth of a second.
As depicted 42 and 44 are precisely known. The benchmark RF signals can be used to calibrate the system and to establish the exact locations of relay stations. There online are other types of RS madplan as well like phase tracking reference signals which are used to counter phase noise at higher frequencies. By the application of known microelectronic fabrication techniques. Secondly, switch to new thesaurus, therefore 5 only about five inches in diameter and only about one and one half inches thick. Surface texture, microsecond makrsknd n Units one millionth of a second. Various vehicle location systems of a more sophisticated nature have been disclosed. Vehicle cras" the Oapos, but can be carried aboard commercial satellites used principally for other 5G supports a single carrier of upto 275 RBs while LTE only supported a single carrier of 100 RBs.